Material: Made of CNC machined aluminum alloy for durability and reliability in the most demanding environments.Easy to Install: Quick release lock design you can adjust the clamp on the way even without any other tools.Fitment: Seatpost clamps suitable for 25.4 mm seatpost. Fits most MTB mountain bike folding bike track bike fixed gear road bike etc.Features: Lightweight and durable the surface is anodized with a matte appearance sturdy and long lasting. Makes adjusting seatpost height much more easier.Replacement Accessory: Bike seat tube clamp with extra long quick release lever for added clamping force a great accessory for bike.Specification:Material: Aluminum AlloySize Chart:Fits for 25.4mm seat post. 62x42x15mm/2.44x1.65x0.59inchPackage Includes:1 Piece Bicycle Seatpost ClampNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping