These are disposable plastic security seal, also known as temper evidence tags or pull tight seals.
They featured unique, laser printed sequential numbers for trackability,such as 054816, visible in the image.
They are designed to be self locking and pull tight, require no tools for application but must be cut for removal.
Commonly used for securing cargo containers, courier bags, fire extinguishers, and vehicle doors to prevent tempering.
Length 25cm.
100 pieces in a pack.