This is an erhu sound filter pad, made of high class 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: White -Material: Wool -Size: 15.50X2.50X0.40cm/6.09X0.98X0.16in -Using premium wool materials, durable, wear-resistant, support your long-term use. -The design is and practical, the appearance is simple, and it is easy to install and use. -This filter pad can minimize the sound level while maintaining sound . -The tender material protects your instrument from scratches and wear. The perfect substitute for Erhu Mute. -High class materials, durable and safe. It helps to reduce the volume, which is very helpful for beginners. Package list: 4 x Erhu Sound Filter Pads