Universal Fit- this car roof rack mount rack holder fits for M12x100mm, M15x100mm, M15x110mm Thru Axles and Quick Release Mount Made of aluminum material, , solid, safe, high strength and stable. All the adapters included in small size allows you take all of them without any burden Stable and safe enough to lock your bike on the rack without worrying scratching your car Can be mounted in a garage, home, shed, for storage and mounted in a truck bed, van, or on a trailer for transporting Colour: Red Material: aluminum alloy Size: 11 x 6.5 x 4.5cm Package Contents: 1 x Car Roof Mount 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.