1DURABLE MATERIAL: Headless guitar locking nut is made of excellent zinc alloy material, corrosion resistant and durable, and can be used for a long time 2ACCURATE LOCKING: The guitar locking nut is well built, accurately shaped and durable, helping to lock the strings firmly, very stable and reliable 3EASY INSTALLATION: The headless guitar string locking nut is equipped with 6 mounting screws for easy installation, saving your labor and time 4PERFECT REPLACEMENT: This is a guitar lock nut string lock for electric guitar bridge parts and is a good replacement for old or broken parts 5SCOPE OF APPLICATION: Electric guitar locking nut size is suitable for headless electric guitars of the right size, the package contain a total of 6pcs, enough for you to replace and use, very convenient 6 x Electric Headless Guitar Locking Nut 6 x Screw