Bicycle Chain Tensioner Bike Chain Fixer Guide Retention System Drop Catcher Anti-Tripping Bike Parts Accessories AM DH Features: *1. Adopt nylon material, which is wear-resistant, high adaptability and long service life. *2. The pivot is made of rubber, which has buffering effect and makes riding quieter. *3. It is mechanically less sensitive to mud and dirt (mud-proof).? *4. Fits any bike with a traditionally placed chain stay (not compatible with elevated designs). Description:? *1. Material: nylon *2. Color: black (as shown) *3. Size: 6.5*3cm *4. Weight: about 18g Package content: Bicycle chain fixer *1 Note: 1. All pictures are professionally color coded, but due to different ambient light and display device settings, there may be some deviations between the pictures you see and the objects themselves, please understand. 2. The data is measured manually, and there may be some deviations, but it will not affect the use.