ATTACHES TO BASS DRUM SHELL WITH VELCRO. HINGED PAD BOUNCES OFF THE HEAD, ALLOWING SUSTAIN BEFORE RETURNING TO DAMPEN THE VIBRATING HEAD. HINGED PAD BOUNCES OFF THE HEAD, ALLOWING SUSTAIN BEFORE RETURNING TO DAMPEN THE VIBRATING HEAD. SMALLER PAD ON OPPOSITE END THAT CAN BE USED ON SMALLER DRUMS OR FOR MINIMAL DAMPING. ALL EVANS ACCESSORIES ARE DESIGNED, ENGINEERED AND MANUFACTURED TO THE MOST STRINGENT QUALITY CONTROLS IN THE INDUSTRY.