Features: It a quick, simple way to load a kayak onto a car top. Make from aluminum alloy materials, ensuring durability, strength, and resistance to corrosion. With thickening 360 degree smooth rotation foam roll with kayak to protect the hull during loading. The use of aluminum alloy contributes to its light weight designs, making it easy to handle and transport. This kayak brackets boosters offer a suitable size for loading and propelling inflatable boats or canoes. Specifications: Materials: Foams and Aluminum Size: About 74.5x24cm/29.33x9.45inch Package Includes: 1set Kayak Suction Cup Holder note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.