Evans ER-STANDARD - E-Rings Standard Set 12", 13", 14" (Snare), 16"

EVANS ER-STANDARD - E-Rings Standard Set 12", 13", 14" (Snare), 16"
External overtone control ring which "floats" on the surface of a drum head.
Removes overtones and flattens the drum head's sound and allows for easier tuning.