Description: 【Install on Any Curved Car Window】: We have improved the suction cup, and the suction power is better than before. Two adjustable brackets can be installed on any curved window. The Brackets can be adjusted to 45 degrees. It allows you to use it on almost all vehicles. 【It Is Easy to Load the Kayak by Yourself】: The heavy duty suction cup is reliably mounted on the car glass, providing a quick and simple solution for a single person to load the boat on the roof. 【Strong Suction Cups】Comes equipped with 2 strong suction cups, getting the best griping on both flat or curved window. The heavy duty metal rod with strong load bearing capacity. During loading and unloading, keep your kayak protected from scratches and dents. 【Versatile Use】: Used to install both small and large sized kayaks and canoes on most vehicles, using suction cups on the top of the car or glass, Kayak rollers allow single people to mount a kayak to a car roof quickly and easily. 【Easy to Use】: Clean the rear windshield surface with a soft towel, and press and mount two suction cups on the rear windshield. Place the bottom of the kayak in the roller foam center, and after reaching balance, slowly push the kayak. Specification: Material: Metal Size Chart: 60cmx19.5cm/23.62inchx7.68inch Package Includes: 1 Kayak Roller Note: Please allow slightly errors due to manual measurement and different monitors.