The carabiner yoyo is a commonly used method for attaching keys, ID covers, access or admission cards, to clothing or in your pocket.
Simply pull the nylon strap and part of the cord is released.
The yoyo does not have a snap-in function, so the retracting mechanism automatically retracts the cord neatly and the key or ID is once again secure and, if desired, visible on the body or in the pocket.
The fabric-reinforced loop gives the nylon strap additional stability.
Identification yoyos are versatile and very popular because of their ease of use.