When you're rolling through your neighborhood on your daily errand run, lock up with the Abus Steel-O-Chain 5805K Key Chain Lock. This handy and light lock is a sure fire upgrade from light duty steel cables, and perfect for suburban corner stores and cafes. It's built with 5-millimeter thick temper hardened square chain links to keep your ride secure, and a nylon sleeve to protect your ride from scratches, and the chain from the elements. The lock uses a key system that's tricky to pick, and comes with two keys so you can keep a backup in your sock drawer at all times.