Description: 【Designed for Bikes without Pre Drilling】: This fender support clamp is great for mountain bikes and road bikes without pre drilling holes, and can easily install fenders, frames and other accessories 【Adjustable】: Made of high strength materials, the adjustable clamp design can firmly fit various frame tube diameters, ensuring stable and shock resistant installation 【DIY Modification Tool】: No drilling or welding is required; just install it on the front or rear fork of the bikes. Bike mounting hole accessories is an ideal component for full coverage fender modification, repair and upgrade 【Quick Installation】: Fenders can be easily installed using screws or brackets in various situations, such as front and rear fender brackets, fender support bar and frame mounting 【High Compatibility】:Cycling repair parts compatible with frame tubes of different shapes (round or oval), this accessory is suitable for mountain bikes, road bikes and commuter bikes of various brands and models Specification: Material:PP Size Chart: 5cmx4cm/1.97inchx1.57inch Package Includes: 2 Fender Support Clamps Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.