Guitar string retainer bars are made of high quality metal, beautiful silver plating, pretty and practical. Tension bars for vibrato systems. These tension bars are designed for electric guitar heads to hold and adjust string tension in vibrato systems. String retainer tension bars are equipped with mounting screws for easy installation and are ideal replacement parts for damaged or old strings. This guitar string tension bar works perfectly with most electric guitars, and the slightly curved fixed bar protects the strings by reducing string friction.<br><br>Colour:Silver Material:Metal<br><br>Package Contents: 4 * Guitar String Retainer Bar<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.