Fits -Shimano BH59 . The product is a set of 4 Shimano Olive and Barb Connector Brake parts, suitable for Shimano disc brakes. Made from copper and steel, these components are compatible with various bike types and come in a gold colour. The set includes barbs and olives, and is designed for both front and rear positions on the bike. Sold as a pack of 4 these parts are essential for maintaining optimal braking. performance on your bike. NOTE .. this is a one use item only as it is crimped onto the brake hose to seal.