Master Lock 8320D Keyed U-Lock

The Master Lock no. 8320D u-lock features a 7-1/4 inch (18Cm) wide hardened steel body for maximum strength and reliability. The 1/2 inch (13Mm) diameter double locking shackle is 8 inches (20Cm) long and made of hardened steel, offering extra resistance to prying, cutting, and sawing. The disc key cylinder prevents picking.