The Party Frank by Knog is a durable, lightweight bike lock that will hold up any bike thief. The Party Frank is comprised of an incredibly strong braided steel cable that is wrapped in soft silicone. The silicone exterior ensures that your bike will not be damaged by the durable steel cable. The cable of the Party Frank is 12 mm thick and 620 mm in length. Knog also outfitted this bike lock with a stainless steel shackle to ensure that your bike is staying exactly where you left it. [Details] Cable length: 620 mm Cable diameter: 12 mm Soft silicone exterior Braided steel cable with with fibre core technology Stainless steel shackle