The innovative billet aluminum chain adjuster blocks hold your wheel precisely in place while you tighten your chain. High quality material makes sure of its durability and excellent braking performance. Perfectly applicable for 50cc 70cc 90cc 110cc 125cc 250cc Buyang TaoTao Kazuma ATV 4 wheeler Quad Dirt Bike. Fit for Coolster 125cc atv,tao Tao 110cc atv,250 four wheeler Unique design features an integrated bolt slot so your blocks stay in position even when the axle is removed, making your chain adjustments requires only one wrench PAGOW 4 Pack 0.4 inch(10mm) Chain Axle Adjusters with 8 Screws Compatible with 50cc 70cc 90cc 110cc Buyang TaoTao Kazuma ATV 4 wheeler Quad Dirt Bike Features The innovative billet aluminum chain adjuster blocks hold your wheel precisely in place while you tighten your chain. High quality material makes sure of its durability and excellent braking performance. Perfectly applicable for 50cc 70cc 90cc 110cc 125cc 250cc Buyang TaoTao Kazuma ATV 4 wheeler Quad Dirt Bike. Fit for Coolster 125cc atv,tao Tao 110cc atv,250 four wheeler Unique design features an integrated bolt slot so your blocks stay in position even when the axle is removed, making your chain adjustments requires only one wrench 100% Customer Satisfaction If you have anything concerned with the item, please first to choose contact us and we will take care of it for you. here is how Find your order in your amazon account, click the ” contact seller” button beside the order ID.