Folding Bicycle Guide Wheel Tool, Bicycle Chain Tensioner, Aluminum Alloy Cycling Chain Tensioner, Single Speed Rear Derailleur Chain Tensioner with Sprocket Bike Chain Tensioner for Cycling

? Features: Premium material: Made of high quality aluminum alloy, lightweight and durable. Features: Stable chain, exquisite workmanship, light weight, simple to install, excellent materials, durable. Applications: Suitable for single speed folding bicycle. Our chain tensioner has three colors for choose, red, black, gold. ? Specifications: Material: aluminum alloy + stainless steel Size: 10x10x5cm Color:red, black, gold ? Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! ? Package Includes: 1 Pc × Bicycle chain tensioner