The Controlled Sound Clear Top Black Dot Bass drumheads feature focused midrange tones with a well-defined attack. Constructed with 1-ply of 10-mil Clear film and a 5-mil Top Black Dot, Controlled Sound Clear Black Dot drumheads provide articulate attack and projection with added durability. The drumhead's outer area offers enhanced tone and sensitivity while the center Black Dot adds durability and overtone control. Available in sizes 18"-40".