The key role in itself works great !!! I had my keys before getting down to a band and so it was not always easy to get up Biefkasten, or the bicycle lock. No longer a problem with the role ... now I come anywhere. The yarn is always pulled back easily, but not so strong that it takes a lot of strength to pull him out. The plastic case acts in the beginning the same times very large (about 5 cm in diameter), has until now but never bothered me! The snap hook for mooring to a belt loop is an incredible scrap. If less than 24 hours needed until the part was broken, ... is definitely weird constructed! I would give an absolute buy recommendation, since the part of the job done and to the carabiner makes a very strong impression! One should hold the same care for a proper snap hook or simply remove the bracket, which are in some keychain tuned that you get as freebies.