Moongel Dampening Gels allow you to effectively control unwanted overtones. Designed to be versatile tone modifiers, these self-adhesive gels stick to the surface of drums, cymbals, and most percussion instruments. The possibilities are endless. By simply moving the damper pad around the surface, you can eliminate any unwanted resonance and obtain the exact sound the situation demands. The damper pad is washable and will retain its stickiness for years of service and can be used over and over again. Moongel Damper Pads are made from a soft non-toxic gel, and come in a 4-pack plastic canister.