The Master Lock 510D Laminated Padlock features a 1-3/4in (44mm) wide laminated steel body for strength and reliability. The 9/32in (7mm) diameter shackle can be adjusted from 5/8in (16mm) to 2in (51mm) long for application flexibility; and is made of steel, offering strong resistance to cutting. The warded single locking lever mechanism minimizes jamming from dirt and grime. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust. Features: Indoor and outdoor padlock with adjustable shackle for application flexibility; best used for residential gates & fences, sheds, workshops & garages, storage lockers, tool boxes and more Key lock is constructed with laminated steel body and a hardened steel shackle for strength and security Warded locking mechanism minimizes jamming from dirt and grime 1-3/4 in. (44 mm) wide lock body; 9/32 in. (7 mm) diameter shackle adjustable from 5/8 in. (16 mm) to 2 in. (51 mm) length, 13/16 in. (21 mm) width One padlock, two keys; Keys cannot be duplicated