Exquisite and professional workmanship makes it very sturdy and durable. Simple and convenient installation and removal will not waste your energy and time. The firm and stable feature makes it very reliable and not easy to fall off. And the wide range of applications makes it suitable for different types of boats. Made of sponge and aluminum alloy, it is very durable to use. The length of the sponge grip is 26cm and the width of the aluminum rod is 36cm. For mounting kayaks and canoes on most vehicles, use an adjustable aluminum alloy stand with 3 different mounting heights and an oversized rubber suction cup on the roof or glass. Mount kayaks and canoes on most vehicles with suction cups on the top of the vehicle or on the glass, with 3 different mounting angles. Item Name: Kayak Booster Stand Material: Aluminum Alloy,Sponge Features: Simple Installation, Stable, Universal Size Details: Sponge Grip Length: 26cm/10.24" (Approx.) Aluminum Rod Width: 36cm/14.17" (Approx.) Suction Cup Diameter: 12cm/4.72" (Approx.) Three-gear Adjustable Height: Length: 27.5cm/10.83" (Approx.) Length: 25cm/9.84" (Approx.) Length: 22.5cm/8.86" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x C Type Aluminum Rod 2 x Suckers 2 x Adjusting Screws