This kit has everything to ensure that your kayak is mounted extra securely. FeaturesNo-Skid™ anti-slip blocks for use on vehicles without racks. Compatible with Yakima™ and Thule™ crossbars. Includes two 14 in. No-Skid™ blocks, one 15 ft. heavy duty utility strap, two 15 ft. bow and stern tie-down straps, two 9 ft. block straps, and four bumper hooks.