31.8mm seat post clamp is generally suitable for 27.2mm seat post;Caliber: 31.8mm . Thumb screw for accuracy & a quick release lever for ease of use;Hollow lever design and rust-resistant high quality retaining bolt;Quantity : 1;Color : Blue

• 31.8mm SeatPost Bike Bicycle Bolt Binder Clamp Quick Release QR Alloy Cycling By FamilyMall
• Blue

31.8mm SeatPost Bike Bicycle Bolt Binder Clamp Quick Release QR Alloy Cycling By FamilyMallFamilyMall CO.,LTD