ade of high quality 6061 aluminum alloy
CNC machining CD texture surface, non-slip
light weight and portable, anti-rust and durable
Easy installment , do not need any tool
100mm long in length , increase stability. 27.2 to 30 bike seatpost shims
More than 18 sizes for your choice
Package:
27.2mm to 30mm Bike Seatpost Shim * 1