Features: The height of bridge and saddle can be adjusted with wrench.There is roller on the bridge, can avoid damage to the strings.The bridge is used to fix the height and distance of strings.Tailpiece is made of solid metal, with metal decoration on frame, sturdy and durable.There is a washerbetween the base and the saddle, which can be removed and installed easily.The button under the saddle is used to fix the height. The front and back position of the saddle can be adjusted by the cross screw on the side of the saddle.Come with mounting screws and wrenches, easy to install and use.Great replacement and accessory, suitable for LP SG type jazz guitar. Specifications: Condition: 100% Brand New Material: Copper-zinc Alloy + Rosewood Weight: Approx. 214g / 7.5oz Bridge Size: Approx. 13.8 * 1.5 * 3cm / 5.4 * 0.6 * 1.2in(Total), 10.4(52)mm / 0.4(2.0)in(String Spacing) Tailpiece Size: Approx. 15.5 * 8 * 0.7cm / 6.1 * 3.1 * 0.3in, 4.8 * 4cm / 1.9 * 1.6in(Mounting Plate) Color: Black Package list: 1 * Tailpiece 3 * Tailpiece Screw 1 * Bridge 1 * 2mm Wrench(for Bridge) 1 * 2.5mm Wrench(for Saddle)