1. Manufacturing Material: chain guard protector is made of plastic material, strong and , which can be used for a long time. 2. Simple : Easy to install, simple to use, will not increase the burden of riding, beautify the bike, to bring you a more comfortable riding experience. 3. Great : the disc from scratches and friction and prevent oil or dust from contaminating the disc, for daily riding. 4. High Performance: Ability to replace old or damaged accessories, resulting in a significant improvement in performance. 5. Easy to Use: Easy to use and fine workmanship. Without any difficult requirements even though you use it for the first time. Specification: Item Type: Chain Guard Protector Weight: Approx.43g / 1.5oz Material: Plastic Color: Black packing list: 1 x Sprocket Protective Cover