This is a erhu string adjuster, manufactured with alloy, sturdiness and durability, and can serve you for a long time. Easy to mount onto your erhu, works smoothly with good precision, very special and good-looking, non-discoloring and easily matched for your instrument. Features -Color:Black -Material:Alloy -Size:6.90X6.20X5.20cm/2.71X2.44X2.04in - With adjustment knobs, it is more convenient for you to adjust the pitch of erhu. - Easy to install, makes fine tuning the erhu to provide more accurate and stable pitch. - The fine tuners easily adjust the erhu in accurate tunes again, save time and effort. - Modern design, make a great decoration, great gift for beginner, amateur and band player. - The tuners with good precision make work smoothly, and it is easy to install and match for your instrument Package list: 2 x Erhu Tuner