This is a high-performances, lightweight bicycle hydraulic disc brake pad bolts for your biking needs. Made from fine quality ti-alloy, it offers nice heat dissipation and perfect corrosion resistance. Features: Ti-alloy has high strength, light weight, fine performances, fine mechanical properties, toughness, and corrosion resistance. The surface is colored with PVD vacuum coating, forming a layer of coating on the surface, enhancing surface hardness while also making the product beautiful and not easy to fade. The pin can only be matched with threaded oil discs, and cannot be used without threads. The ti-alloy circlip can be inserted and pulled with barehands. Multiple colors available for selection according to needs. With a box for convenient carrying and storage. Specifications: Color: black, multicolour, gold, silver (optional) Material: Ti-alloy Thread: M4 Pin size: 31 * 5.5 * 2.8mm / 1.2 * 0.2 * 1.1in Package size: 91 * 63 * 18mm / 3.6 * 2.5 * 0.7in Package weight: 34g / 1.2ounce Packing List: 2 * Pin 2 * Circlip