Replacement Part No.: R025R025 hex nut one way bearing for VX 28 14mm EngineMade of High Quality Meterial, Stronger And More Durable, Improve The AppearanceEasy to use,Easy to replaceColour: blackMaterial: metalPackage Contents:2 * 14mm One Way Bearing Hex NutOnly the above package content, other products are not included.Note: Light shooting 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.