Specification: Material: Alloy Color: Gold, Silver, Black(Optional) Size: Approx. 84.5 * 17 * 12mm / 3.3 * 0.7 * 0.5in String Spacing: Approx. 10mm / 0.4in Weight: Approx. 92g Packing List: 1 x Guitar Roller Bridge 2 x Studs 1 x 2mm Allen Wrench 1 x 2.5mm Allen Wrench Note: Please allow slight size inaccuracy due to manual measurement. We appreciate for your understanding.