• Made of high-quality aluminum alloy, lightweight, durable, and anti-corrosion, offers greater compression resistance, does not break or deform. • The bicycle seat post clamp adopts a hollow design, easy to adjust the seat height and quickly install it on your bike, and the bolt is replaceable. • Specially developed accessory for all types of bicycles (MTB, road, city, folding, or electric). The 31.8 mm clamp is compatible with seat posts of 27.2-28.6 mm. • The seat post clamp has a design with a rotating lock and an extra-long ergonomic lever that is much more comfortable, while allowing greater clamping force and locking of the seat post for safer bike riding. • Ergonomically designed quick-release bicycle seat post clamp, loved by more cyclists. The quick-release bicycle seat clamp is suitable for road bikes, mountain bikes, folding bikes, etc.