The Master Lock 1-3/4-inch (44mm) wide, warded laminated steel lock with standard steel adjustable shackle. It is keyed alike. Shackle length adjusts from 2-3/4-inch (7cm) to 5-3/8-inch (14cm). Warded locking mechanism minimizes jamming from dirt and grime. Master Lock offers a full line of padlocks, chains, cables, and specialty locks for all of your needs.