A Set of Roller Saddle Black Tune-O-Matic Bridge Tailpiece Studs for LP Electric Guitar Replacement Parts Made of high quality alloy, the roller bridge is durable and corrosion resistant. It is used for LP electric Guitar, in Black Finishing Fully adjustable saddles for harmonics, with smooth working rollers, complete with locking posts The roller bridge helps keep string stable and reduce the string breakage. Includes 4 matching posts, 2 for tailpiece, 2 for bridge