Feature 1Heavy-duty aluminum frame with foam to prevent scratches and damage when getting mounting your kayak. 2Made of sturdy aluminum construction. Won\u0027t rust or corrode. 3The boat roller can be used with any vehicle, rack, or carrier, and it can help load as many boats as you need to. 4Suction cups design, strong suction cups that keep it in place with 2 different mounting angles. 5Quick to install, easily load your kayak onto your roof rack with the boat roller.Features: Heavy-duty aluminum frame with foam to prevent scratches and damage when getting mounting your kayak. Made of sturdy aluminum construction. Won't rust or corrode. The boat roller can be used with any vehicle, rack, or carrier, and it can help load as many boats as you need to. Suction cups design, strong suction cups that keep it in place with 2 different mounting angles. Quick to install, easily load your kayak onto your roof rack with the boat roller. Specifications: Color: Black, Silver(optional) Material: Aluminum alloy+Instant noodles sheath Tube Diameter: 28mm Package Size: 29*12.5*11.7CM Package Weight: 1021g Package list: 1 * Boat Canoe Suction HolderPackage List1 * Boat Canoe Suction Holder