Compatibility: Zinc alloy roller bridge set compatible with Epiphone/Gibson Les Paul/SG/ES style guitars, or other 6 stringed guitars. Specifications: String spacing: 51.5mm (2-1/32"); Post spacing: 73.5mm (2-57/64"); Bushing outer diameter: 12mm (15/32"); Post thread: 8mm (5/16") (M8); Radius of curvature: 304.8mm (12"). Roller Saddles: This bridge is equipped with six roller saddles, which enable individual intonation adjustments. Its smooth operation and stable design help prevent string jams and maintain tuning stability, thus ensuring a clear and consistent playing experience. Complete Package: The package includes 1 zinc alloy bridge, 2 post, and 2 wrenches, providing everything you need for a hassle-free installation. Please Note: Ensure an ideal match by referring to the detailed product specifications in the images section prior to making your purchase. Compatibility: Zinc alloy roller bridge set compatible with Epiphone/Gibson Les Paul/SG/ES style guitars, or other 6 stringed guitars.