1. Made of Aluminum alloy material, solid, safe, stable and . 2. All the adapters included in small size allows you take all of them without any burden. 3. Stable and safe enough to lock your bike on the rack without worrying scratching your car. 4. Can be mounted in a garage, home, shed for storage, and mounted in a truck bed, van, or on a trailer for transporting. 5. Equipped with 4 types of quills for easy installation Quick release type 5 (w10o), medium 12 shaft (W: 100), 15 shaft (W: 100) and 15 shaft (W: 110) Color: Black Material: aluminum alloy Package Contents: 2 x Bike Fork Mount 8 set x Thru axle 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.