The “O Ring” Custom manufactured memory wire outer hoop designed to be durable and retain its shape while adding the perfect amount of weight to the surface of the drum head. Drop it right on and it will stay put. Pull it off instantly! Cloth hoop is double layered, hand stitched and weighted to provide the optimal amount of dampening and “EQing” out of unwanted tones and leaves ample space in the middle of the drum head open for uninhibited brush sweeps and stick work. A quick and effective way to get those toms and snare to sound warm and mellow.