Feature:1. High Strength: This chain guide is made of high strength AL7075 aluminum alloy, CNC machined, with high strength, strong and durable.2. Light Weight: This bike chain guide is made of super light material, it is light weight, it will not burden the bike, it helps to ride easily.3. Fixed Chain: It keeps your chain firmly in place, with a tight fit, and the fixing plate preserves you and your bike from damage, ride with confidence.4. Easy Installation: Extremely easy to install, convenient to operate, never drop a chain ever again and make sure your bike rides smoothly.5. Support Specifications: This direct mount bike chain guide supports BB mount BSA68 or ISCG 05 mount, please confirm the specs before use.Specification:Item Type: Bike Chain GuideMaterial: 7075 Aluminum Alloy CNC and NylonGross Weight: 156g / 5.5oz Package List:1 x Chain Guide1 x Adapter3 x Screw6 x Washer