Starry chain lock Citycat Make sure your bike, scooter or moped will never be stolen with this chain lock Starry . Attach the lock to your bike and turn it on lock with the provided keys. The inside consists of steel wire. Surrounding it is a nylon layer to prevent damage to the bicycle. specifications: Colour Black Material chain: steel Cover material: Nylon Material padlock: Steel Size padlock: 17 x 9.5 x 4 cm Chain length: 120 cm Chain diameter: 10 mm Weight: 3750 grams Mark: ART-3 Content: 1 Chainlock 1 Bracket Final 3 Keys