Indoor padlock is best used as a school locker lock and gym lock, providing protection and security from theft.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. Preset three-digit combination lock for keyless convenience Combo lock is constructed with a metal body, stainless-steel cover, hardened steel shackle, and anti-shim locking mechanism for strength and security 1-7/8 in. (48 mm) wide lock body; 9/32 in. (7 mm) diameter shackle with 3/4 in. (19 mm) length, 13/16 in. (21 mm) width Made in USA