Feature: HIGH STRENGTH: The chain guide is made of AL7075 aluminum alloy, CNC machined, with high strength. SAFE RIDING: The chain guide keeps the chain firmly in place, preventing collisions and riding safely. LIGHTWEIGHT: The bike chain guide is sturdy, lightweight, and strong enough to not burden your bike. EASY INSTALLATION: The chain guide needs no additional accessories and can be easily installed on your bike. BIKE ACCESSORIES: Chain guides are used for bike repairs and upgrades for a better riding experience. Specification: Item Type: Bike Chain Guide Gross Weight: Approx. 165g/5.8oz Material: 7075 Aluminum Alloy CNC and Nylon Package List: 1 x Chain Guide 1 x Adapter 3 x Screw 3 x Gasket