Quick release design: easy and fast removal Designed for quick release of front fork bikes Stable and safe enough to lock your bike on the rack without worrying scratching your car Easy installation and mounting fits almost all kinds of bikes, cars and you can change the quick release according your bikes size First measure the length/width/height of the rear row of the car. Then measure the width of the bicycle. two bicycles can be placed in the car. Find the center of the board to determine the position of the hole. Use a cross wrench to fix the screws. Fixer installation is complete. Remove the bicycle tire and fix the bicycle on the stabilizer. After the installation is completed, it can be placed indoors and inside the car, which is safe and stable. Colour: Black / Blue Material: aluminum alloy Size: 160 x 64 x 40mm Package Contents: 1 x Bike Carry Rack Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.