["brand new and high quality\nFeatures:\nHigh quality of materials, wear and corrosion resistance.\nHigh hardness and lightweight.\nInstallation: Support Single Speed/2 Speed/3 Speed/6 Speed Internal And External Transmission Can Be Used.\nThis Product Uses 7075 Locking Screws To Increase The Locking Strength And Strength. The Return Spring And Guide Wheel Bearings Are Replaced With Stainless Steel Materials. There Is No Fear Of Rusting Under The Influence Of Weather, Which Increases The Service Life.\nfor Play The Function Of Adjusting Rear Speed During Riding. The Horizontal Center Bearing Reduces Wear And Tear, And At The Same for Time Increases The Tension Of The Chain, Making It Difficult To Drop.\nBicycle Chain Guide only,other accessories demo in the picture is not included.\n\nSpecification:\nMaterial: Aluminum Alloy\nSize: app.18x7cm/7.09x2.76in\nOptional Color: Black, Golden, Red, Silver\nQuantity: 1 Pc\n\nNote:\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 Contents:\n1 x Bicycle Chain Guide"]