Best used as a gym lock and school locker lock for protection and security from theft.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. Set your own four-digit combination lock for easy combination recall Combo lock is constructed with a zinc body, hardened steel shackle, and anti-shim locking mechanism for strength and security 1-1/2 in. (38 mm) wide lock body; 1/4 in. (6 mm) diameter with 15/16 in. (24 mm) length, 11/16 in. (17 mm) width Combination lock is available in black, blue, red, and white (color randomly selected at time of shipment)