Amazon.com: Evans EMAD System Pack, 22” (2pc) – Includes Batter Bass Drumhead and Resonant Drumhead -Externally Mounted Adjustable Damping System Allows Player to Adjust Attack and Focus Without Removing Drumhead: Musical Instruments
EVANS EMAD COATED BASS BATTER DRUM HEAD (SIZES 18" TO 26") – Drumazon