Jack lock for 1/4" (6.35mm) inputs attached to a 24" loop end cable. Locks into any 1/4" jack on drum machines, mixers, etc. When used correctly, it will not harm an all plastic jack found in a lot of small items. The loop end offers several options; you can run the cable through or around something, then pass the jack lock through the loop. Or you can attach several items together with one padlock.