Premium Material: Bike wheel nut and washer kit is made of high-quality carbon steel, super sturdy and very durable, not easy to break and deform. Besides, Bike wheel nut and washer kit is well-polished, so it is smooth while using.

Bike Wheel Axle Nut and Bicycle Hub Safety Washer Kit, Flanged Nuts Parts Accessories for Mountain Bike Wheel Axle. Product Size: as shown in the detail picture; M8 suitable for bicycle bicycle front axle; M9.5 suitable for bicycle bicycle rear axle; M10 suitable for bicycle bicycle central axle.