Lock up your bike with confidence using the Bell Ballistic 610 12mm HD Steel Cable Lighted Key Bicycle Lock, which features heavy-duty, 12 mm steel with a PVC coating for strength and security. This cable comes with 1 standard key and 1 lighted key for convenient use, even in the dark. Requires 2 CR1220 batteries, included. Bell Ballistic 610 Steel 12mm HD Steel Cable Lighted Key Bicycle Lock Black - Bicycle Accessoriesories at Academy Sports