Aquarian FR20BK 20" Bass Drum Head in Black

Resonant bass drumheads that feature the same "vented" muffling ring as the Force I™ heads. an acoustically "vented" muffling ring that is tucked into the hoop on the underneath side of the head. The muffling ring has special "tone holes" that allow the ring to move and resonate with the head. This head has a powerful attack with outstanding projection. A free Port Hole™ is included - this gives the drummer the option of placing the hole where desired.