Usage Tips:Features: The Quick Release Bike Roof Rack Mount is made of premium CNC aluminum alloy, so it is durable, wear-resistant, and practical. High strength, strong bearing capacity, not easy to damage, suitable for most bicycles. Quick release design, easy to install and use, no damage to paint. Complete installation, can be placed indoors, in vehicles, etc., safe and secure. It has a long service life. It is for ideal for transport, car, and indoor use. Specifications: Material:Aluminum Alloy Item Size: 110 x 58 x 38mm/ 4.3 x2.3x 1.5in Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Fork Mount, 8 x Thru Axle.