Description:This product converts 12mm thru-axle hub to standard 9mm quick release.Tool-free installation, just insert the adapter into the thru axle hub.Both sides of the product are provided with a rubber ring, which is not easy to be shaken after installation. It plays the role of protection. In addition, 4 spare rubber rings.The barrel axle of the barrel shaft can be converted into an ordinary bicycle quick release wheel set CNC machining High precision work well Aluminum alloy light weight.Specification:Material: aluminum alloySpecifications: 142mm /5.60inchSize: 154x12x12mm / 6.06x0.47x0.47inchFor detail size information, please refer to the picture.Color: RedPackage Includes:1 Piece Bike Thru Axle Hub Adapter4 Pieces Spare Rubber Rings