These tuning pins can tightly fix the strings, allowing the guitar to maintain the pitch to enhance the playing pleasure.Universal size guitar string tuning nail head tuner, suitable for almost all acoustic guitars and electric guitars.Suitable for classical folk guitars parts accessory.Material: Zinc Alloy & Rose woodSize Chart:Size: Approx. 11 x 5cm/4.33 x 1.97 inchPackage Contents:2 Pieces Guitar Tuning PegsOnly the above package content, other products are not included.Note: Light shooting 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.