External overtone control ring that "floats" on the surface of the drum head - Removes overtones and flattens the drum heads' sound and allows for easier tuning - ER-FUSION.
External overtone control ring that "floats" on the surface of the drum head - Removes overtones and flattens the drum heads' sound and allows for easier tuning - ER-ROCK.
External overtone control ring that "floats" on the surface of the drum head - Removes overtones and flattens the drum heads' sound and allows for easier tuning - ER-SNARE.
External overtone control ring that "floats" on the surface of the drum head - Removes overtones and flattens the drum heads' sound and allows for easier tuning - ER-STANDARD.