Description: Small kit, convenient to take. This seat clamp quick release lever is a simple replacement for your seat binder bolt. It allows you to adjust the seat height quickly and easily without tools. Quick release design. Two plastic cushion, one metal cushion. Specification: Material: Aluminum Alloy Rod Length: Approx.6cm / 2.4inch Screw Diameter: 6mm/0.24inch Color: Black Package Includes: 2 Pieces Quick release Bicycle Seat Clamp