The Controlled Sound Coated Bottom Black Dot offers focused mid-tones with added durability. The Controlled Sound Coated Bottom Black Dot drumheads are made from a single-ply 10-mil coated film and 5-mil Bottom Black Dot drumheads, providing medium and heavy drumhead characteristics. The outer area of the drumhead enhances sound and sensitivity, while the center point increases durability and overtones control. Size 14" in the coated version with a black dot on the bottom.