Crown Control Gels™ provide superior overtone control without inhibiting tonal vibration. Crown Control Gels can be used on all drumheads, cymbals and other hand percussion instruments that require overtone dampening. Ideal for fatter and more controlled tones on toms and snare drums, the gels can be cut to a desired size and the non-toxic formula can be washed with soap and water to reactivate surface adhesion properties. Crown Control Gels are packaged in a stick bag friendly container and include 8 pieces.