Drum sound muffler-- these drum dampeners pads are made of Silica gel, flexible, and it can be used for a long time. Silica gel drum silencers-- provides volume reduction and will not drastically alter the drums feel. professional and practical to use. Drum mute cushion-- it can be given as a gift to your friends who are learning to play drums. they will definitely be very happy. Drum pads-- no odor, , flexible, and it can be used for a long time. you deserve to have one. Dampener for-- a for a drummer to practice without having to worry about volume is not controlled. size: The single black dot is about 3.3 x 2.6 x 0.3cm, the curved version is about 16 x 2.5cm Material: Silica gel colour: Black Package Contents: 12 x black dot style Silent pad 2 x arc style Silent pad 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.