Evans Bass Drum Heads EQ3 20 inch Resonant Smooth Head with No Port White

20-inch resonant drum head with a single ply of 7.5mil film A fixed, internal overtone control ring is made to be microphone friendly, from the studio to arena No mic port Available in a frosted, onyx, smooth white, coated white, and mic port version All evans drum heads are designed, engineered and manufactured in the usa