FEATURES: Foam Protection Arms of Kayak roof rack. Heavy Duty Rubberized Coated Undermount Support. Steel Top Support Mounting Plate, Galvanized Threaded Bolts, Wing Nuts, 12 foot Nylon Straps. EASY TO INSTALL: Kayak Roof Mount Is Designed With Oversized Galvanized bolts and Large Nylon Threaded Wing Nuts. Securing Kayak Racks Takes Only A Few Minutes to Attach to Your Existing Crossbar. QUALITY: ArcRack J-Rack System is Constructed with 1/4 Inch Solid Steel Metal Frame Molded to J Shape. The High Quality Durable Frame is Designed to Last for Many Years. MULTIPLE APPLICATIONS: This kayak carrier is not just for kayaks—also Good for transporting canoes, surfboards, skis, snowboards, and small boats. Essential accessory for all your outdoor adventures. DESIGN SHAPE: J-Rack Strap Cut Out Design Provides Secure Access Channel located at Top and Bottom of Kayak J Hooks For Nylon Straps to Lace Through Rack and Provide Maximum Hold. Single Arm Car Roof Kayak Rack With Straps