The installation process for these erhu tuning tool is easy, you can attach them securely to your erhu and fine-tune its sound. Whether you're a professional or a beginner, these tuning tool is designed to bring you good playing experience. Features -Color:Khaki -Material:Metal -Size: 3.20X0.50X1.20cm/1.26X0.20X0.47in - Good craftsmanship: Made of craftsmanship, with excellent texture. Light and compact<b - Practical: Very suitable for obtaining precise pitch, very suitable for any group performing a singing -Multi-use: In addition to tuning, it can also be used as a good tool for singing and ear training - Quick and Easy Installation: Installing these tuning tools onto your erhu is quick and easy, providing convenience and ease of use - Improved Musical Abilities: Improve your musical abilities with these erhu tuning tools, you can have good using feeling</b Package list: 6 x erhu string turners