Evans Hydraulic Red Bass Drum Head 20 -- Check this awesome product by going to the link at the image.(It is Amazon affiliate lin… | Drum and bass, Drums, Drum head
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