Perfect for focused midrange tones and well-defined attack, Remo's Controlled Sound Clear Top Black Dot drumheads are carefully designed with 1-ply of 10-mil Clear film and a 5-mil Top Black Dot. Necessary for musicians who require precision and clear articulate attack, this model offers enhanced tone and sensitivity on the outer area while the center adds durability and overtone control. This model measures in at 18 inches.