Small and exquisite appearance, it is convenient to carry. excellent durability. Matched with an acoustic guitar nut, a classical guitar saddle, and 6 pieces of bridge pins. Light weight, it is easy to use. Suitable for most acoustic and electric guitars. : Material:ABS(Acrylonitrile Butadiene Styrene)+ Plastic Color:Black + + Random Pins Length:29.3mm String Winder Length:72mm / 42.7mm Nut Size:81.7mm Package Includd: 1 x color random Winding string Device 2 x pillow 6 x color guitar chords nail 6 x black guitar chords nail Note: Random color, don't accept the specified color. 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.