Features Material: ABS. This product is made of high-class materials, safe and durable, with excellent texture. Very effective suitable for sound attenuation, easy to install and use the trombone instrument silently. With this mute, you can on practicing the trombone without disturbing others. Made of premium material, flexible and durable to use. It is easy to use and operate. Will not scratch your trombone. It will provide convenience in dampening trombone practice volume without affecting the tone. COLOR: Black Fine workmanship, small size and easy to carry. A good helper suitable for trumpet lovers. This useful trombone accessory can help you play a more beautiful melody. Package Contents: 1 x Tenor Trombone Mute Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.