["brand new and high quality\nFeatures:\nThis bike chain single-disc guide can guide the chain and protect the chain,making it not easy to jump and drop.\nIt is strong and made of aluminum alloy,it features high hardness,can be used for a long for time.\nUltra-light high-strength 7075 aluminum alloy, high-quality CNC processing, light weight but high strength\nIt is used for single-disc sprocket,using it can make the ride smoother,providing you a good riding experience.\nThe installation is simple and fast,and you can use wrench to adjust it,no need to remove your cranks.\nIt is suitable for mountain bike to use,it designed with compact size and is lightweight,the surface is smooth and burr free.\nBicycle Chain Guide only, other accessories demo in the picture is not included!\n\nSpecifications:\nMaterial: 7075 Aluminum Alloy CNC; Nylon\nFrame Protector Diameter: app.35-31.8mm/1.38-1.25in(Detail size please see size pictures)\nWeight: app.52g\nColor: Black\nQuantity: 1 Pc\n\nNote:\nNo retail package.\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n1 x Bicycle Chain Guide"]