Bicycle Seat Post Clamp Saddle Clamp Quick Release New Details: The bicycle quick-release seatpost clamp is the perfect accessory for mountain bikes. Long lever clamp that provides extra leverage when closing. Made from high quality aluminium alloy, robust and durable. Easy to install. Item condition: 100% brand new Material: Aluminium alloy Colour: Black,Silver,Gold,Red,Blue (as pictures show) Model:  31.8mm seat tube clamp suitable for 27.2mm/28.6mm seat tube 34.9mm seat tube clamp suitable for 31.8mm seat tube (optional) Package contents: 1 * bicycle seat post clamp Notice:  The actual colour of the item may differ slightly from the pictures shown on the website due to many factors such as the brightness of your monitor and light brightness.