Check the listing for details. Durability Nylons Bicycles Chain Guide Wheel Chain Tensioner Guide Wheel. Condition: New, Made in China. Listed at 10.56 USD. Features: Consist of durability aluminum alloys, it is light and durability. Suitable for enthusiastic cyclists and bicycles mechanic. It is suitable for various kind of cycling scenes, from leisures cycling to fierce mountain bike adventure. Essential bicycles component to enhances your cycling experiences. Ensures long-terms use and reliability operations for each cycling. Specifications: Dimension:4.5×4.5×1.180cm/1.77×1.77×0.46in Component:Nylons Package Includes: 1pc Chain press guide wheel note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.