Drum sound muffler—these drum dampener pads are made of silica gel, flexible, and designed for long-term use. Silica gel drum silencers provide volume reduction without significantly altering the feel of the drums. Professional and practical for everyday use. Drum mute cushion—ideal as a gift for friends who are learning to play drums. Drum pads are odor-free, durable, flexible, and built to last. A useful accessory for any drummer practicing in environments where volume control is important. Size: The single black dot is approximately 3.3 x 2.6 x 0.3 cm; the curved version is approximately 16 x 2.5 cm. Material: Silica gel. Color: Black. Package contents: 12 x black dot style silent pad, 2 x arc style silent pad. Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.