RTOM Moongel Dampening Gels effectively control unwanted drum overtones. Designed to be versatile tone modifiers, self-adhesive Moongels stick to the surface of your drums, cymbals, and most percussion instruments. The possibilities are endless.
By simply moving the damper pad around the percussive surface, you'll eliminate any unwanted resonance and obtain the exact sound the situation demands. Moongel damper pads are washable and retain their stickiness for years of service. Use them over and over again. 

Moongel Damper Pads are made from a soft non-toxic gel, and come in a 4-pack plastic canister.