Axle Caps and Wheel Bearing Covers for All Models. This set of five caps protects the axle from rust, debris and damage, by securely covering the axle opening and preventing water and dirt from wrecking your ride. Made from Material with CNC-etched styling. Easy to install with a dual O-ring style mounting system and secured in place by the axle nut. Additional 2-set blacked-out cover set fits over your inside wheel bearing on the front tires, completely sealing your axle. Colour:Black Material:Aluminum alloy Package Contents: 1x Axle Caps Kit 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.