Adjustable roller saddle guitar bridge for LP-style electric guitars Improved string stability Roller saddles are designed to reduce string breaks and enhance sustain on LP-style guitars. Compatibility and fit Compatible with most guitars; features 6.3 mm post holes for 6 mm posts commonly found on guitars and similar import guitar brands. Includes hardware for secure installation Includes dowels and large M8 threaded bridge posts with a top section of 6 mm diameter for added stability. Saddle mounting rings for reliable performance Equipped with high-stability saddle mounting rings to eliminate saddle rattle and ensure dependable performance. Use scenarios - Upgrading an LP-style guitar that experiences string breaks or short sustain by installing the adjustable roller saddle bridge. - Replacing worn or loose bridges on guitars with 6 mm posts and 6.3 mm post holes to improve tuning stability and resonance. - Setting up or refurbishing guitars in a shop or studio that use import brands with compatible post hole sizes, ensuring a solid and quiet saddle assembly. Notes Meets the stated specifications and functions for LP-style electric guitars, providing improved stability, compatibility with common post sizes, and durable mounting hardware.