Description: Made of carbon steel material,very durable. This Bottom Bracket Remover allows you to use the link with a more common hand tool. Small,easy to use and carry. Suitable for splinted type bottom bracket. A necessity small tool for repairing bicycles. Specification: Material: 45# carbon steel Size: approx.5 x 3.3 x 3.3cm/ 1.97 x 1.3 x 1.3inch Package Includes: 1 Piece Bike Bottom Bracket Remover Tool