The Yakima Boat Locker, with its 10 feet of coated stainless steel cable securely locks your boat to your roof rack. The two included attached cuffs secure your paddle as part of the bargain. Uses Yakima's standard SKS lock core(included).10' of flexible, coated stainless steel cable for dependability. Includes SKS lock core and key. Works with all roof rack types and all kinds of boats.