The Controlled Sound® Coated Bottom Black Dot™ features focused midrange tones with added durability. Constructed with 1-ply of 10-mil Coated film and a 5-mil Bottom Black Dot™, Controlled Sound® Coated Bottom Black Dot™ drumheads provide medium and heavy-duty drumhead characteristics. The drumhead's outer area offers enhanced tone and sensitivity while the center dot adds durability and overtone control.