Bass Drum Patch,Drum Head Drum Percussion Instrument Black 11 X 11cm Increase the durability of the cushion and prolong the life of the drumhead, including two patches to avoid of the patches from weathering due to frequent use. Effectively prolong the durability of drum skin, improve the timbre of bottom drum, and increase the texture of sound quality. It can be used for single pedal and double pedal of drum set. The product is made of good material, made of bass drum patch, soft and tightly fitted. Easy and quick installation, it is a good replacement accessory for replacing old and products and the installation is convenient and quick, without too many complicated operation steps, and the structure is firm and stable. Used to the overtone of the drum, more perfect, and avoid the drum from pedal fatigue. The replacement effect is good, and the use effect of the instrument is not affected. Colour:Black Material:PET Size: 11 x 11cm Package Contents: 2 x Bass Drum Patches 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.