Features 1、​Made of high quality aluminum alloy, this product is durable and rustproof. 2、Quick release design, easy to install and use. 3、With this product, you can adjust the clamp on the way even without any other tools, make your cycling smoothly. 4、 28.6mm clamp fit for: 25.4mm seatpost, 31.8mm clamp fit for 27.2mm-28.6mm seatpost. 5、 High gloss and bright color design, make it more beautiful. Features: 1. Made of high quality aluminum alloy, this product is durable and rustproof. 2. Quick release design, easy to install and use. 3. With this product, you can adjust the clamp on the way even without any other tools, make your cycling smoothly. 4. 28.6mm clamp fit for: 25.4mm seatpost, 31.8mm clamp fit for 27.2mm-28.6mm seatpost. 5. High gloss and bright color design, make it more beautiful. Specification: Condition:100% Brand New Material: Aluminium alloy Color: Random Diameter Type: 28.6mm, 31.8mm, 34.9mm(Optional) Diameter: approx. 28.6mm/1.1inch approx. 31.8mm / 1.3inch approx. 34.9mm/1.4inch Weight: Approx.46g/1.6oz Package list: 1 * Seatpost Clamp Note: Please note that the color will be sent randomly. Package List