1.[Bicycle Chain Protector]This chain guard can reduce the friction between the chain and the bicycle frame. The 3D structure fits the curved surface to protect the frame from scratches and prevent the bicycle frame from being rusted and damaged, extend the life of the bicycle. 2.[Premium Material]Bicycle chain pad made by premium silicone material, preventing the chain from shaking and continuously hitting the frame. The airbag type protects the frame from collision with the chain, and protects the original paint of the frame. No glue, no edge warping. 3.[ and Carry]Size: 234x50mm. The chain guard is convenient for installation and can be disassembled at any time. At the same time, it is light and easy to carry, easy to clean, very suitable for outdoor sports. 4.[Application]Our chainstay protector suitable for all bicycles on the market, including mountain bikes, ladies' bicycles, road bikes, racing cycles, round bikes and so on. Great gift for those bicycle racers and bike lovers.