2PCS Bicycle Chain Adjuster Adjustable Chain Buckle Bicycle Wheel Fixing Button Zipper Chain Tensioner Chain Adjuster Suitable

The product can very well help you grasp the tension of your bicycle chain. Excellent quality, light weight, small size, very suitable for the needs of bicycles and extremely easy to install. The whole product is made of high-quality steel, which can have high strength while maintaining easy characteristics, and is resistant to wear. Suitable for most bicycles, dead-flying/folding bikes, etc., horizontal rear fork type fork frame. Single-speed inverter for chain tensioner to adjust the tightness of the chain. Floating pulley and spring adjustment device to achieve perfect chain tension. Made of high-end high-quality steel material, wear-resistant when in use. Very suitable for mountain bikes,bicycles etc. Used in single-speed inverters for chain tensioners.