Reliable material: Bike fork mount car roof rack is made of aluminum alloy, and practical, long service life. Usage: Bike fork mount screw is used for carrying with the luggage rack on the car roof, to help you fix the bicycle and bike. Portable: Bike fork mount car roof holder is small size, light weight, carry it with you and put it in your pocket, not only taking up any space. Replacement parts: Fixed rear wheel bracket set helps you replace damaged bicycle parts and improve the performance of bicycle and car. Easy to use: Car roof bicycle rear wheel frame fixing screws can be quickly released, which is vertical roof frame. Colour:black Material:Aluminum alloy Package Contents: 1x Car Roof Rack Only the above package content, other products are not included. Note: Light reflection 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.