1. Saddle bridge post spacing is 51.5mm (2.03 inches), the string spacing of the bridge is 10.3mm (0.41 inch), the width is 101.3mm (3.99 inch). 2. Regular Guitar bridge replacement/upgrade for 6 stringed LP, SG, EPI, ES style guitar or similar instruments. 3. the bridges help keep string stable and reduce the string breakage. Also, increase sustain and keep tuning stability. 4. Material: Aluminum alloy, the bridge is durable and corrosion resistant. Material: Aluminum alloy + copper colour: silver Package Contents: 1 x Roller Saddles style Tune-O-Matic Bridge 2 x Studs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.