Features:_x000D_ 1.Made of quality metal material, anti-deformation, sturdy and durable._x000D_ 2.Lightweight, easy to install and use._x000D_ 3.It will weaken the volume, not influenced others while your playing._x000D_ 4.Fine craftsmanship, hard to break, long service time._x000D_ 5.Great accessory for erhu player._x000D_ _x000D_ Specifications:_x000D_ Material: Metal_x000D_ Optional Color: Golden, Black_x000D_ Size: Approx. 3.7*2*2cm/1.5*0.8*0.8in_x000D_ _x000D_ Packing List:_x000D_ 1*Mute 1Made of quality metal material, anti-deformation, sturdy and durable. 2Lightweight, easy to install and use. 3It will weaken the volume, not influenced others while your playing. 4Fine craftsmanship, hard to break, long service time. 5Great accessory for erhu player.