1. Material: Durable hard acrylic, ABS plastic, and steel. 2. Package content: 6 guitar string tuning pegs, 6 ferrules, 6 mounting screws. 3. Sound quality: Makes guitar tuning simple and accurate, mainly used for 6-string classical guitars (electric or acoustic guitars). 4. Function: These guitar tuning pegs are the perfect replacement for old tuning pegs. These guitar tuning pegs have been tested many times and have excellent sound quality. 5. Gear ratio: 1:14, with built-in heavy-duty gears, suitable for 10 mm (0.39 inches) standard peg holes. 6. Color: Gold. 7. Material: Zinc alloy. 8. Detailed package content: - 3 left-hand guitar tuning pegs - 3 right-hand guitar tuning pegs - 6 ferrules - 6 screw accessories 9. Only the above package contents are included, no other products. 10. Note: Light reflection and different displays may cause the color of the items in the picture to be slightly different from the actual object. The allowable measurement error is +/- 1 - 3 cm.