["Description:\r\nbrand new and high quality\r\nFeatures:\r\nExquisite workmanship, full CNC precision machining, anode color, bearing shaft, can be used with a variety of guide wheels, the guide wheel is generally 11 teeth, can also use 13 teeth.\r\nFloating pulley and spring adjust for perfect chain tension.\r\nLight weight and easy to install, made of high grade aluminum alloy material, durable in use.\r\n\r\nSpecification:\r\nType: Chain Tensioner\r\nMaterial: 6061 Aluminum alloy\r\nApplications: Single speed folding bicycle\r\nFeatures: Stable chain, exquisite workmanship, light weight, easy to install, high quality materials, durable, bicycle accessories\r\nDimension: app.5.5x12cm/2.17x4.72in\r\nColor: Red, Black (optional)\r\nQuantity: 1 Pc\r\n\r\nNote: \r\n1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\r\n2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n1 Pc x Chain Tensioner"]