ITEM NAME:Bicycle Quick Release Nuts Cap Wheel Hub Axle Bolts Cycling Shaft Nuts Screw Description: Made of aluminum alloy material, light weight, high strength. Easy to install and durable. With non-slip washer,is not easy to fall off. Anti-slip surface,unique appearance,corrosion-resistant. This nut is specially designed for bicycle quick release lever. Specification: Material: Aluminum Alloy Height: Approx.16mm/0.63inch Out Diameter: Approx.19mm/0.75inch Type: M5 Color: Black Package Includes: 2 Piece Bicycle Hubs Nut Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks! SKU: DMO0021004319477707.This nut is specially designed for bicycle quick release lever. 2 Piece Bicycle Hubs Nut. With non-slip washer,is not easy to fall off. Color may be slightly different since different monitor. Anti-slip surface,unique appearance,corrosion-resistant.