SODIAL Guitar Tune-O- Matic Bridge Tailpiece Tail for Les Paul LP Style Set Black This item includes 4 matching posts (2 for tailpiece, 2 for bridge) Material: Zinc Alloy Fully adjustable saddles for harmonics, with smooth working rollers, complete with locking posts The wholesale tailpiece is approx. Width (17 mm) Length (98mm), Spacing between 2 studs (82 mm, from center to center) Color: Black