Indoor and outdoor padlock is best used as a school locker lock, gym lock, and gate lock, providing protection and security from theft Set your own four-digit combination lock for easy combination recall; Combination change tool included Combo lock is constructed with a solid body for strength and weatherability, hardened steel shackle for cut resistance 2 inch (51 millimeter) wide lock body; 5 by 16 inch (8 millimeter) diameter shackle with 1 inch (25 millimeter) length, 1 inch (25 millimeter) width Includes four set your own combination locks Shackle is preset to open on 0-0-0-0; See user manual in technical specifications section of this page for combination reset instructions