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. Available in sizes 6"- 18".