["brand new and high quality\nFeatures:\nMade of high quality 7075 alluminum, lightweight, durable and precise.\nUltralight and won'for t add too much weight to your bicycle.\nEasy installation, a direct replacement for the old or broken one.\nThe appearance is simple，generous and colorful. Suitable for Rotor 130BCD Road Bike.\nRoad Bike Chainwheel only,other accessories demo in the picture is not included.\n\nSpecification:\nMaterial: 7075 Aluminum\nOptional Size: 50T, 52T, 54T, 56T, 58T, 60T\n50T Size: app.20.9x20.9x1cm/8.23x8.23x0.39in\t\n52T Size: app.21.6x21.6x1cm/8.50x8.50x0.39in\t\n54T Size: app.22.5x22.5x1cm/8.86x8.86x0.39in\t\t\n56T Size: app.23.3x23.3x1cm/9.17x9.17x0.39in\t\t\n58T Size: app.24.1x24.1x1cm/9.49x9.49x0.39in\t\n60T Size: app.24.9x24.9x1cm/9.80x9.80x0.39in\t\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 Contents:\n1 x Road Bike Chainwheel"]