Kayak Boat Roller With Adjustable Tightness and Angle Easy solution for a single person to load a boat to a car top. Specification: Colour: Silver Item Size:53x23x13cm Weight:1.755kg( 3.87 lbs ) Material:Aluminium frame with padded eva foam Max loading capacity: 100kg(220 lbs) Used for: Kayak Canoe Boat .etc Easy to use:First open the trunk of the car, put the fixing device on the engine fixing rope into the trunk, then close the trunk, adjust the booster to the required height, not higher than the position of the roof rack, and then hook another rubber hook Go into the gap in the roof, then tighten the straps, fix the booster to the rear of the car, and finally put the kayak side on the wheel of the booster to push the kayak to the roof Attention please: Please check the measurement before Purchase. If you have any questions after receiving the goods, please ask the store service for HELP Don't Delay! Stock is Strictly Limited! CLICK the 'Add to Cart' Button at the Top of this Page !