Evans Sound Control E-Rings Drum Pack
The E-Ring is an easy-to use external overtone control ring which "floats" on the surface of a drum head. It removes overtones and flattens the drum head's sound and allows for easier tuning.
ER STD pack contains clear rings for 16, 14, 13, and 12 inch drums.
ER SNARE contains two 14" clear rings, 1.5" and 1" thick.