Specifications: Brand: ROCKBROS Applicable Front Fork Diameter: approx. 19-36mm Applicable Seat Post Diameter: approx. 26-30mm Weight: approx. 234g Material: Eco-friendly PP material Color: Black Features: ENVIRONMENTALLY FRIENDLY MATERIAL: These fenders are made of high-quality PP material that is not easily deformed or broken. The wider and larger bicycle fenders provide better protection against mud and rain, preventing your back from getting wet. ADJUSTABLE: The rear fender features two adjustment knobs, allowing for flexible multi-angle positioning. AERODYNAMIC DESIGN: The curved design conforms to the shape of the tire, effectively blocking water and mud, and is easy to clean. After wiping with a cloth or a simple rinse, it looks like new. EASY INSTALLATION: Quickly install the front and rear fenders using the included installation tools. They can also be easily removed from the bike when not needed. UNIVERSAL: Our bicycle fenders fit 24-28 inch wheels and are suitable for all types of mountain bikes, road bikes, touring bikes, etc. If you are unsatisfied with our fenders or have any issues, please feel free to contact us.