This is erhu sound filter pad, made of high-grade materials, durable and practical. It can effectively reduce the volume of the erhu and has a good noise reduction effect. Share it with your friends and family because it is a great gift. Features -Color:Black -Material:Wool - Size: 15.50X4.50X0.40cm/6.09X1.77X0.16in - Reduce the volume of erhu practice so as not to disturb your family or neighbors. The perfect accessory for practicing Erhu. Can be given as a gift to friends. - Used for adjusting the vibration frequency and of the erhu skin to achieve better sound quality, great for noise reduction and noise suppression. - Flexible and durable, the erhu will not be damaged during installation, providing you with more convenience. - The sound will not be affected when the volume is lowered, which is very practical and easy to use. - The workmanship of this product is perfect, and you will have a good user experience. Package list: 10 x Erhus Filter Pads