Thank you for looking. This is a silicone control pad (sound quality adjustment material) for the Erhu. It is placed under the bridge, between the strings and the skin, and serves to eliminate noise. Color: Brown Size: 2.8cm x 2.0cm x 8mm Material: Silicone Ships via standard mail. Available in black and orange as well. Other Erhu-related items are listed here. ↓ ↓ ↓ #mint333二胡 Erhu Erhu goods