MASTER LOCK® NO. 1 KEYED PADLOCK – 15/16″ SHACKLE – KEYED DIFFERENT MASTER LOCK® NO. 1. KEYED DIFFERENTLY. TWO KEYS INCLUDED. 1-3/4″WIDE LAMINATED STEEL BODY FOR SUPERIOR STRENGTH. HARDENED STEEL 5/16″ DIAMETER SHACKLE FOR EXTRA CUT RESISTANCE. 4-PIN CYLINDER HELPS PREVENT PICKING. DUAL LOCKING LEVERS PROVIDE EXTRA PRY RESISTANCE. HARDENED BOTTOM PLATE FOR DRILL RESISTANCE. TOP-AND-BOTTOM BUMPERS FOR GREAT SCRATCH RESISTANCE. PROPRIETARY RUSTPROOFING FOR LONGER LIFE. SHACKLE MEASURES 15/16″ INSIDE HEIGHT AND 3/4″ INSIDE WIDE.