Improve your erhu playing feeling with these specially designed tuning tools. Constructed from sturdy copper material, they can withstand regular use and provide improvements to your instrument's sound. Features -Color:Khaki -Material:Copper -Size:2.00X1.00X0.80cm/0.79X0.39X0.31in - Copper Material: Constructed from copper materials, these erhu tuning tools are not easy to deform or break, very - Easy to Use: These tuning tools are easy to use, compatible with the erhu to give you convenient performing experience -Simple and Practical: These erhu turners have a simple but practical, providing a pleasant user experience -Improved Stability: Upgrade your erhu with these tuning tools, improve the stability and sound quality of performance - Lightweight and Convenient: These tuning tools for erhu are lightweight, easy to use and convenient to store Package list: 20 x erhu string turners