1. Machine heads with a 1:18 gear ratio are suitable for classical guitars and acoustic guitars. 2. Each set contains 3 machine heads and 4 screws, arranged in 2 rows. 3. The left - hand machine heads are for the first, second, and third strings, and the right - hand machine heads are for the fourth, fifth, and sixth strings. 4. They have an elegant appearance and fine craftsmanship, providing relatively precise and stable tuning for the guitar. 5. They are made of metal material and are of good quality with a relatively long service life. 6. Gear ratio: 1:18 7. Color: Gold 8. Material: Metal 9. Dimensions: Approximately 110 mm in length 10. Package contents: - 1 left - hand machine head - 1 right - hand machine head 11. The package mainly includes the above - mentioned items and few other products. 12. Note: Light reflection and different displays may cause slight differences between the color of the item in the picture and the actual product. A measurement error of plus or minus 1 - 3 cm is acceptable.