Keychain made of: Airbus A321-100 - Lufthansa - D-AIRB Blue/White

D-AIRB was one of the oldest A321.

Built in 1993, stored in 2020 in Budapest and finally scrapped in 2024.

The aircraft is an A321-100. 
These 100 series aircraft can hardly keep up with modern airbuses or even the A321-200.
The maximum takeoff weight and landing weight are significantly lower, which of course affects the payload and range.
The performance of the engines is also weaker, which means that this aircraft is subject to some limitations. 

But nonetheless, D-AIRB was a tireless workhorse that reliably brought hundreds of thousands of passengers to their destinations.
And now also available as an aircrafttag.