1、PREMIUM MATERIAL: Bike seatpost clamp is made of premium and high strength aluminum alloy, durable, rustproof, erosion resistance and long service life. 2、PROFESSIONAL DESIGN: Bike seatpost clamp is specially designed for mountain biking, the size is about 31.8mm, which makes it compatible with all kinds of bike seats. 3、STRONG CONNECTION: Bike seatpost clamp ensures a secure and stable connection, preventing any wobbling or slipping. 4、FINE WORKMANSHIP: Quick release bicycle seatpost clamp is made of fine workmanship, CNC cutting, grinding and polishing, the surface is flat and burr free, excellent hand feeling. 5、LIGHTWEIGHT DESIGN: Bike seatpost clamp adopts a large area of hollow, lightweight and weightless, reducing the burden of cycling. Item Type: Bike Seatpost Clamp Material: Aluminum Alloy Size: Approx. 31.8mm/1.25in 1 x Bike Seatpost Clamp Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store