• aviationmegastore.com
  • aviationoutletstore.com
  • aviationshopsupplies.com
  • aviationmegatrade.com
  • 737-simulator.com
Quick Search
Go

Advanced Search
Aviation Shop
Aircraft Models »
Aviation Books »
Flight Simulation »
Pilot Shop »
Aircraft Scale Modelling »
  Aircraft Scale Modelling
  Aircraft Scale Modelling Decals »
  Aircraft Modelling accessories »
  Aircraft Modelling Conversion »
  Aircraft Modelling Topics »
  Aircraft Scale Modelling Tools »
  Aircraft Scale ModellingPaint »
  SPECIAL OFFERS Aircraft Scale Modelling »
Various Aviation items »
Aviation Video/dvd/cd-rom »
Downloads
Flight Simulator Download Software »
Computers
Computers for Flight Simulators
Frequent buyers programme

Collect Megapoints for Megavouchers
Read the conditions...

Hold & Store service ©

Aviation Megastore offers unique Hold & Store service © for internet customers that wish to combine several individual orders to one single shipment, reducing the overall shipping cost significantly.
Read more...

Newsletter
Click here to subscribe to our newsletter!
Follow us

Aircraft Scale Modelling

Sort order by:
Show all
Show future releases only
51114 products found
product Publisher/Brand Scale Price €
Gribovskij G-28 "Krechet" ("Merlin") Gribovskij G-28 "Krechet" ("Merlin") Prop & Jet 1 : 72
PJ72222		 € 35.50
EU: incl. tax € 42.95
Airbus A320 (Tiger Airways) (LAST STOCKS) Airbus A320 (Tiger Airways) (LAST STOCKS) Flevodecals 1 : 144
FD144-205		 € 7.40
EU: incl. tax € 8.95
Bristol Sycamore (Civil) Bristol Sycamore (Civil) S&M models 1 : 72
SMK72-38		 € 24.75
EU: incl. tax € 29.95
Bristol Sycamore (RAF and Royal Australian Navy) Bristol Sycamore (RAF and Royal Australian Navy) S&M models 1 : 72
SMK72-36		 € 24.75
EU: incl. tax € 29.95
  AL31F Exhaust nozzles for Suchoi Su34 family (Zvezda) Amigo Models 1 : 72
AMG72024		 € 11.53
EU: incl. tax € 13.95
  Lavochkin La5F Early and late versions Prop & Jet 1 : 72
PJ72205		 € 49.95
€ 28.88
EU: incl. tax € 34.95
Save 30.0%
Airbus A320 (Finnair New colours) (LAST STOCKS) Airbus A320 (Finnair New colours) (LAST STOCKS) Flevodecals 1 : 144
FD144-207		 € 7.40
EU: incl. tax € 8.95
FV621 Alvis Stalwart MK1 General Service Vehicle GB/Sweden) FV621 Alvis Stalwart MK1 General Service Vehicle GB/Sweden) S&M models 1 : 76
SMK76-01		 € 24.95
€ 18.14
EU: incl. tax € 21.95
Save 12.0%
Armstrong Withworth Argosy 100 series (Elan) Armstrong Withworth Argosy 100 series (Elan) Mikro-Mir 1 : 144
MM-144013		 € 42.95
€ 31.36
EU: incl. tax € 37.95
Save 11.6%
  SAAF Merlin MAV Decals 1 : 72
72-315		 € 4.09
EU: incl. tax € 4.95
  SAAF SA330 Antartica Puma (Orange white blue) MAV Decals 1 : 72
720318		 € 5.74
EU: incl. tax € 6.95
  SAAF Oryx (UN Colours) MAV Decals 1 : 72
720319		 € 4.92
EU: incl. tax € 5.95
SAAF Gloster Meteor F3 SAAF Gloster Meteor F3 MAV Decals 1 : 72
72-317		 € 4.09
EU: incl. tax € 4.95
SAAF Mirage III BZ ( Camo 85 Sqn) SAAF Mirage III BZ ( Camo 85 Sqn) MAV Decals 1 : 72
72-314		 € 5.74
EU: incl. tax € 6.95
SAAF Beechcraft Super King Air 300 SAAF Beechcraft Super King Air 300 MAV Decals 1 : 72
72-316		 € 4.09
EU: incl. tax € 4.95
SAAF SA330 Antartica Puma (Orange white blue) SAAF SA330 Antartica Puma (Orange white blue) MAV Decals 1 : 32
32-020		 € 5.74
EU: incl. tax € 6.95
SAAF Mirage IIIEZ/RZ Update set (Italeri) SAAF Mirage IIIEZ/RZ Update set (Italeri) MAV Decals 1 : 32
32-022		 € 11.53
EU: incl. tax € 13.95
SAAF DC-3 Dakota (Air Ambulance, 6853 1966) SAAF DC-3 Dakota (Air Ambulance, 6853 1966) MAV Decals 1 : 72
72-320		 € 5.74
EU: incl. tax € 6.95
  SAAF Oryx (UN Colours) MAV Decals 1 : 32
32-021		 € 4.92
EU: incl. tax € 5.95
SAAF Mirage IIIBz Camouflage 1980's SAAF Mirage IIIBz Camouflage 1980's MAV Decals 1 : 48
48-246		 € 10.95
€ 6.57
EU: incl. tax € 7.95
Save 27.4%
  SAAF Pre World War II Type A and A1 Roundels 1937-1942 MAV Decals 1 : 48
48-233		 € 5.74
EU: incl. tax € 6.95
SAAF DC-3 Dakota (Air Ambulance, 6853 1966) SAAF DC-3 Dakota (Air Ambulance, 6853 1966) MAV Decals 1 : 48
48-247		 € 6.57
EU: incl. tax € 7.95
McDonnell Douglas MD82 (1 Time Airlines- Standard) McDonnell Douglas MD82 (1 Time Airlines- Standard) MAV Decals 1 : 144
MAV144028		 € 12.95
€ 8.22
EU: incl. tax € 9.95
Save 23.2%
Armstrong Whitworth Argosy 200 series (BEA) Armstrong Whitworth Argosy 200 series (BEA) Mikro-Mir 1 : 144
MM-144014		 € 42.95
€ 31.36
EU: incl. tax € 37.95
Save 11.6%
Cessna L19E Bird dog (Japan Ground Self Defence Force) Cessna L19E Bird dog (Japan Ground Self Defence Force) Mini Wing 1 : 144
MINI304		 € 6.57
EU: incl. tax € 7.95
Mirage IVP n°57 CD "Dissolution EB 2/91 Bretagne" 1964-1996 Mirage IVP n°57 CD "Dissolution EB 2/91 Bretagne" 1964-1996 Syhart Decal 1 : 72
72-093		 € 8.22
EU: incl. tax € 9.95
Cessna O1A Bird dog (Royal Thai AF) Cessna O1A Bird dog (Royal Thai AF) Mini Wing 1 : 144
MINI306		 € 6.57
EU: incl. tax € 7.95
Mirage IVP #31 BD "30 years FAS" 1964-1994 Mirage IVP #31 BD "30 years FAS" 1964-1994 Syhart Decal 1 : 72
72-096		 € 8.22
EU: incl. tax € 9.95
Mirage IVP n°23 AV "50ans EB 2/91 Bretagne" 1942-1992 Mirage IVP n°23 AV "50ans EB 2/91 Bretagne" 1942-1992 Syhart Decal 1 : 72
72-092		 € 8.22
EU: incl. tax € 9.95
Tupolev TB1P (MTB-1) seaplane torpedo bomber Tupolev TB1P (MTB-1) seaplane torpedo bomber Mikro-Mir 1 : 72
MM72-010		 € 59.95
€ 45.41
EU: incl. tax € 54.95
Save 8.3%
Mirage IVP n°23 AV "50ans EB 2/91 Bretagne" 1942-1992 Mirage IVP n°23 AV "50ans EB 2/91 Bretagne" 1942-1992 Syhart Decal 1 : 48
48-092		 € 10.70
EU: incl. tax € 12.95
Cessna L19A Bird dog (US Army Korea) Cessna L19A Bird dog (US Army Korea) Mini Wing 1 : 144
MINI303		 € 6.57
EU: incl. tax € 7.95
Mirage IVP n°23 AV "40ans FAS" 1964-2004 Mirage IVP n°23 AV "40ans FAS" 1964-2004 Syhart Decal 1 : 48
48-094		 € 10.70
EU: incl. tax € 12.95
Mirage IVP #31 BD "30 years FAS" 1964-1994 Mirage IVP #31 BD "30 years FAS" 1964-1994 Syhart Decal 1 : 48
48-096		 € 10.70
EU: incl. tax € 12.95
Mirage IVP #59 CF "C'est Fini" 1964-2005 Mirage IVP #59 CF "C'est Fini" 1964-2005 Syhart Decal 1 : 72
72-095		 € 8.22
EU: incl. tax € 9.95
Cessna O1A Bird dog (South Vietnamese AF) Cessna O1A Bird dog (South Vietnamese AF) Mini Wing 1 : 144
MINI305		 € 6.57
EU: incl. tax € 7.95
Cessna O1E Bird dog (USAF Vietnam War Cessna O1E Bird dog (USAF Vietnam War Mini Wing 1 : 144
MINI307		 € 6.57
EU: incl. tax € 7.95
Mirage IVP #59 CF "C'est Fini" 1964-2005 Mirage IVP #59 CF "C'est Fini" 1964-2005 Syhart Decal 1 : 48
48-095		 € 10.70
EU: incl. tax € 12.95
4 piece mini vise set 4 piece mini vise set Squadron SQ10262 € 18.14
EU: incl. tax € 21.95
Junkers Ju88A-4 (REISSUE) Junkers Ju88A-4 (REISSUE) Italeri 1 : 72
341018		 € 18.97
EU: incl. tax € 22.95
Super Etendard Landing gear (Kitty Hawk) Super Etendard Landing gear (Kitty Hawk) Scale Aircraft Conversions 1 : 48
SAC48323		 € 14.01
EU: incl. tax € 16.95
F4 Phantom II Landing Gear (Zoukei Mura) F4 Phantom II Landing Gear (Zoukei Mura) Scale Aircraft Conversions 1 : 48
SAC48322		 € 14.01
EU: incl. tax € 16.95
AH-64D Apache Landing gear (Hasegawa) AH-64D Apache Landing gear (Hasegawa) Scale Aircraft Conversions 1 : 48
SAC48321		 € 13.18
EU: incl. tax € 15.95
Curtiss P40B Warhawk Landing Gear (Airfix) Curtiss P40B Warhawk Landing Gear (Airfix) Scale Aircraft Conversions 1 : 48
SAC48320		 € 11.53
EU: incl. tax € 13.95
IAR-80 Landing Gear (Hobby Boss) IAR-80 Landing Gear (Hobby Boss) Scale Aircraft Conversions 1 : 48
SAC48319		 € 12.36
EU: incl. tax € 14.95
Grumman F14 Tomcat Landing Gear (Tamiya) Grumman F14 Tomcat Landing Gear (Tamiya) Scale Aircraft Conversions 1 : 48
SAC48318		 € 15.66
EU: incl. tax € 18.95
F2H-2 Banshee Landing Gear (Kitty Hawk) F2H-2 Banshee Landing Gear (Kitty Hawk) Scale Aircraft Conversions 1 : 48
SAC48317		 € 14.01
EU: incl. tax € 16.95
Curtiss P-40C warhawk Landing Gear (Bronco) Curtiss P-40C warhawk Landing Gear (Bronco) Scale Aircraft Conversions 1 : 48
SAC48316		 € 12.36
EU: incl. tax € 14.95
Lockheed T-33A Shooting Star (Great Wall Hobby) Lockheed T-33A Shooting Star (Great Wall Hobby) Scale Aircraft Conversions 1 : 48
SAC48315		 € 14.01
EU: incl. tax € 16.95
RF-84F Thunderflash Landing Gear (Tan Models) RF-84F Thunderflash Landing Gear (Tan Models) Scale Aircraft Conversions 1 : 48
SAC48314		 € 14.01
EU: incl. tax € 16.95
F16 Fighting Falcon (heavy) Landing Gear (Kinetic) F16 Fighting Falcon (heavy) Landing Gear (Kinetic) Scale Aircraft Conversions 1 : 48
SAC48313		 € 14.01
EU: incl. tax € 16.95
F16 Fighting Falcon (light) Landing Gear (Kinetic) F16 Fighting Falcon (light) Landing Gear (Kinetic) Scale Aircraft Conversions 1 : 48
SAC48312		 € 14.01
EU: incl. tax € 16.95
Boulton Paul Defiant Landing Gear (Airfix) Boulton Paul Defiant Landing Gear (Airfix) Scale Aircraft Conversions 1 : 48
SAC48311		 € 12.36
EU: incl. tax € 14.95
F/A-18A/B/C/D Hornet Landing Gear (Kinetic) F/A-18A/B/C/D Hornet Landing Gear (Kinetic) Scale Aircraft Conversions 1 : 48
SAC48310		 € 14.83
EU: incl. tax € 17.95
C141B Starlifter Landing Gear (Roden) C141B Starlifter Landing Gear (Roden) Scale Aircraft Conversions 1 : 144
sac14424		 € 11.53
EU: incl. tax € 13.95
Boeing 777 Landing Gear (Zvezda/Revell) Boeing 777 Landing Gear (Zvezda/Revell) Scale Aircraft Conversions 1 : 144
sac14423		 € 13.18
EU: incl. tax € 15.95
EF2000 Eurofighter Landing Gear (Hasegawa) EF2000 Eurofighter Landing Gear (Hasegawa) Scale Aircraft Conversions 1 : 72
SAC72135		 € 10.70
EU: incl. tax € 12.95
Mikoyan MiG29 Fulcrum Landing Gear (Trumeter) Mikoyan MiG29 Fulcrum Landing Gear (Trumeter) Scale Aircraft Conversions 1 : 72
SAC72134		 € 12.36
EU: incl. tax € 14.95
Suchoi Su-33 Flanker D, J-15 PLAAF Landing Gear (Trumeter) Suchoi Su-33 Flanker D, J-15 PLAAF Landing Gear (Trumeter) Scale Aircraft Conversions 1 : 72
SAC72133		 € 12.36
EU: incl. tax € 14.95
Focke Wulf FW190 Landing Gear (Eduard) Focke Wulf FW190 Landing Gear (Eduard) Scale Aircraft Conversions 1 : 72
SAC72132		 € 9.88
EU: incl. tax € 11.95
  F106 Delta Dart Landing Gear (MENG) Scale Aircraft Conversions 1 : 72
SAC72131		 € 12.36
EU: incl. tax € 14.95
Mirage F1 Landing Gear (Special Hobby) Mirage F1 Landing Gear (Special Hobby) Scale Aircraft Conversions 1 : 72
SAC72130		 € 12.36
EU: incl. tax € 14.95
Pfalz DXII Landing Gear (Wingnut Wings) Pfalz DXII Landing Gear (Wingnut Wings) Scale Aircraft Conversions 1 : 32
sac32112		 € 13.18
EU: incl. tax € 15.95
Sopwith Pup Landing Gear (Wingnut Wings) Sopwith Pup Landing Gear (Wingnut Wings) Scale Aircraft Conversions 1 : 32
sac32111		 € 13.18
EU: incl. tax € 15.95
  Hawker Tempest MKV Landing Gear (Eduard) Scale Aircraft Conversions 1 : 32
sac32110		 € 14.83
EU: incl. tax € 17.95
Roland CII Landing Gear (Wingnut Wings) Roland CII Landing Gear (Wingnut Wings) Scale Aircraft Conversions 1 : 32
sac32109		 € 13.18
EU: incl. tax € 15.95
A6M5 Zero Landing Gear (Hasegawa) A6M5 Zero Landing Gear (Hasegawa) Scale Aircraft Conversions 1 : 32
sac32108		 € 13.18
EU: incl. tax € 15.95
  Boeing 707-320 mask set (Heller) Two Six decals 1 : 72
26M-7206		 € 6.57
EU: incl. tax € 7.95
  Avro Vulcan mask set (Airfix) Two Six decals 1 : 72
26M-7205		 € 4.92
EU: incl. tax € 5.95
  De Havilland Heron mask set (Airfix) Two Six decals 1 : 72
26M-7204		 € 4.92
EU: incl. tax € 5.95
  Douglas DC4/C54 Skymaster mask set (Revell) Two Six decals 1 : 72
26M-7203		 € 5.74
EU: incl. tax € 6.95
  Douglas DC6B mask set (Heller) Two Six decals 1 : 72
26M-7202		 € 5.74
EU: incl. tax € 6.95
  Bristol Britannia mask set (Roden) Two Six decals 1 : 144
26M-4403		 € 4.92
EU: incl. tax € 5.95
Lockheed L1011 Tristar (Court Line 'Pink") Lockheed L1011 Tristar (Court Line 'Pink") Two Six decals 1 : 144
sts44280		 € 12.36
EU: incl. tax € 14.95
Lockheed L1011 Tristar (Court Line 'Yellow") Lockheed L1011 Tristar (Court Line 'Yellow") Two Six decals 1 : 144
sts44279		 € 12.36
EU: incl. tax € 14.95
Lockheed L1011 Tristar (Air Canada) Lockheed L1011 Tristar (Air Canada) Two Six decals 1 : 144
sts44278		 € 12.36
EU: incl. tax € 14.95
Vickers Super VC10 (BOAC) Vickers Super VC10 (BOAC) Two Six decals 1 : 144
sts44276		 € 12.36
EU: incl. tax € 14.95
  Boeing 767-346ER (JAL 2011) Two Six decals 1 : 200
200-45		 € 9.05
EU: incl. tax € 10.95
Lockheed L1011 Tristar (PSA) Lockheed L1011 Tristar (PSA) Two Six decals 1 : 200
200-48		 € 10.70
EU: incl. tax € 12.95
  Instrument Panel PZL P.11 set (Silver Wings) Yahu Models 1 : 32
YMS3202		 € 9.88
EU: incl. tax € 11.95
Beechcraft 1900C (DHL) Beechcraft 1900C (DHL) A Model 1 : 72
72345		 € 33.95
€ 27.23
EU: incl. tax € 32.95
Save 2.9%
Boeing 737-200 (Sabena) Boeing 737-200 (Sabena) Two Six decals 1 : 72
72-184		 € 16.49
EU: incl. tax € 19.95
Boeing 737-200 Advanced (Transavia) Boeing 737-200 Advanced (Transavia) Two Six decals 1 : 72
72-182		 € 16.49
EU: incl. tax € 19.95
Boeing 737-200 (CP Air) Boeing 737-200 (CP Air) Two Six decals 1 : 72
72-181		 € 16.49
EU: incl. tax € 19.95
Boeing 737-200 (British Airways) Boeing 737-200 (British Airways) Two Six decals 1 : 72
72-180		 € 16.49
EU: incl. tax € 19.95
Boeing 737-200 (Britannia Airways 1970's) Boeing 737-200 (Britannia Airways 1970's) Two Six decals 1 : 72
72-178		 € 16.49
EU: incl. tax € 19.95
Boeing 737-200 (PanAm Early) Boeing 737-200 (PanAm Early) Two Six decals 1 : 72
72-176		 € 16.49
EU: incl. tax € 19.95
Boeing 737-200 (PanAm Billboard) Boeing 737-200 (PanAm Billboard) Two Six decals 1 : 72
72-177		 € 16.49
EU: incl. tax € 19.95
Douglas C54B (Aer Turas) Douglas C54B (Aer Turas) Two Six decals 1 : 72
72-175		 € 12.36
EU: incl. tax € 14.95
Douglas C54D (Malta Metropolitan) Douglas C54D (Malta Metropolitan) Two Six decals 1 : 72
72-174		 € 12.36
EU: incl. tax € 14.95
  Douglas C47 (Air freight / Skyways Cargo Airline) Two Six decals 1 : 72
72-173		 € 14.95
€ 10.70
EU: incl. tax € 12.95
Save 13.4%
DHC6 Twin Otter (Aurigny) DHC6 Twin Otter (Aurigny) Two Six decals 1 : 72
72-172		 € 14.95
€ 10.70
EU: incl. tax € 12.95
Save 13.4%
DHC6 Twin Otter (Ethiopian Airlines) DHC6 Twin Otter (Ethiopian Airlines) Two Six decals 1 : 72
72-171		 € 14.95
€ 10.70
EU: incl. tax € 12.95
Save 13.4%
DHC6 Twin Otter (Jearsey European Airways) DHC6 Twin Otter (Jearsey European Airways) Two Six decals 1 : 72
72-170		 € 14.95
€ 10.70
EU: incl. tax € 12.95
Save 13.4%
Short 330 (Air Europe Express) Short 330 (Air Europe Express) Two Six decals 1 : 144
144-845		 € 10.70
EU: incl. tax € 12.95
Boeing 777-333ER (Air Canada) Boeing 777-333ER (Air Canada) Two Six decals 1 : 144
144-844		 € 12.36
EU: incl. tax € 14.95
Boeing 707-312 (MSA Malaysia-Singapore Airlines) Boeing 707-312 (MSA Malaysia-Singapore Airlines) Two Six decals 1 : 144
144-842		 € 12.36
EU: incl. tax € 14.95
Lockheed Tristar (Air Atlanta Icelandic) Lockheed Tristar (Air Atlanta Icelandic) Two Six decals 1 : 144
144-838		 € 12.36
EU: incl. tax € 14.95
Boeing 777-300 (TAAG Angola Airlines) Boeing 777-300 (TAAG Angola Airlines) Two Six decals 1 : 144
144-835		 € 14.01
EU: incl. tax € 16.95
Boeing 777-200/300 (Air France) Boeing 777-200/300 (Air France) Two Six decals 1 : 144
144-834		 € 14.01
EU: incl. tax € 16.95
Displaying 12601 to 12700 (of 51114 products)Result pages: [<< Prev] 512 [Next >>]
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100
101 102 103 104 105 106 107 108 109 110
111 112 113 114 115 116 117 118 119 120
121 122 123 124 125 126 127 128 129 130
131 132 133 134 135 136 137 138 139 140
141 142 143 144 145 146 147 148 149 150
151 152 153 154 155 156 157 158 159 160
161 162 163 164 165 166 167 168 169 170
171 172 173 174 175 176 177 178 179 180
181 182 183 184 185 186 187 188 189 190
191 192 193 194 195 196 197 198 199 200
201 202 203 204 205 206 207 208 209 210
211 212 213 214 215 216 217 218 219 220
221 222 223 224 225 226 227 228 229 230
231 232 233 234 235 236 237 238 239 240
241 242 243 244 245 246 247 248 249 250
251 252 253 254 255 256 257 258 259 260
261 262 263 264 265 266 267 268 269 270
271 272 273 274 275 276 277 278 279 280
281 282 283 284 285 286 287 288 289 290
291 292 293 294 295 296 297 298 299 300
301 302 303 304 305 306 307 308 309 310
311 312 313 314 315 316 317 318 319 320
321 322 323 324 325 326 327 328 329 330
331 332 333 334 335 336 337 338 339 340
341 342 343 344 345 346 347 348 349 350
351 352 353 354 355 356 357 358 359 360
361 362 363 364 365 366 367 368 369 370
371 372 373 374 375 376 377 378 379 380
381 382 383 384 385 386 387 388 389 390
391 392 393 394 395 396 397 398 399 400
401 402 403 404 405 406 407 408 409 410
411 412 413 414 415 416 417 418 419 420
421 422 423 424 425 426 427 428 429 430
431 432 433 434 435 436 437 438 439 440
441 442 443 444 445 446 447 448 449 450
451 452 453 454 455 456 457 458 459 460
461 462 463 464 465 466 467 468 469 470
471 472 473 474 475 476 477 478 479 480
481 482 483 484 485 486 487 488 489 490
491 492 493 494 495 496 497 498 499 500
501 502 503 504 505 506 507 508 509 510
511 512


Shopping cart

Your shopping cart is empty.

Login
E-mail:
Password:
Sign in
New Customer? Create an account
Forgot your password? Click here
Shop near Amsterdam-Schiphol Airport. LOOK INSIDE !

When in the Netherlands,
visit our shop near
Amsterdam-Schiphol Airport.

Click on the image below for
extended tour.

 

Fly in the B737NG Simulator

cockpit_180px

General Information
About Us
Contact Us
Opening hours
Route information
Payment information
Frequent Buyers bonus
Shipping cost
Pre-orders
Reservation service
Terms and Conditions
Privacy Statement
Taxfree policy
Scale vs Model dimensions