Remo Crown Control Gels are eight self-adhesive pads made of silicone, which damp the harmonics of drums, cymbals and percussion in a controlled manner. Remo's dampening pads promote a deep, rich and shorter sound, depending on their use. Remo Crown Control Gels come in a convenient plastic case that fits in any stick bag. If they have been in use for a long time, the adhesive effect can be renewed simply by washing them with soap and water.