Peg -Bicyle 12 to 9mm Thru Axle Quick Release Hub Conversion Skewer Adapter Black Highlights Generic Brand Bicyle 12 to 9mm Thru Axle Quick Release Hub Conversion Skewer Adapter Black Description: This product converts hub to thru axle from 12 mm into a standard 9mm quick release. Tool-free installation, just insert the adapter into the thru-axle hub. Both sides of the product have a rubber ring, which is not easy to shake after installation. It plays the role of protection. Also, 4 spare rubber rings. The barrel axle of the barrel shaft can be converted into a bicycle quick-release wheel set. CNC machining. High precision precision work. Light weight aluminum alloy. specification: Material: aluminum alloy Specification: 142mm /5.60inch Size: 154x12x12mm / 6.06x0.47x0.47inch For detail size information, please refer to the picture. Black color Package includes: 1 Piece Bike Axle Hub Adapter 4 Pieces Spare Rubber Bushings