This is a 2.2 m long label for application to a Combination 2.2 m Track/Optics Bench or Combination 1.2 m Track/Optics Bench. For use with the Combination 1.2 m Track/Optics Bench, you will need to cut the label to 1.1 m.
The strip is part of the Vernier Motion Encoder System, and it is also included with the Motion Encoder Upgrade Kit, the Motion Encoder Cart and Receiver, and the Combination Dynamics Track/Optics Benches.