erhu string tuners are universally used for erhu tone and pitch adjusting use, small but practical. Carefully made of zinc alloy material and made of crafting process, it is suitable for professional and personal use. Features -Color: Golden, black -Material: Zinc alloy -Size: 2.50X1.50X0.50cm/0.98X0.59X0.20in -They are made of and rigorous manufacturing processes. -It is not only suitable for professionals, but also for beginners, useful and practical. -Our products are small, but very useful and convenient for people who have an erhu to use. -They are very convenient, portable and easy to use, helping you to solve the problems encountered when using the erhu. -They can be given as to your friends who are learning to play the erhu, this time they will be of great help to them. Package list: 4 × Erhu String Tuners