Introduced in 1968, Remo Controlled Sound Black Dot clear batter drumheads combine single-ply Ambassador-weight construction with a 5-mil laminated center dot for focused tone, controlled overtones and added durability. The dual-zone design delivers midrange tone and sensitivity across the outer playing surface, while the reinforced center reduces high-frequency overtones and provides greater tonal focus. Blending the responsiveness of a medium-weight drumhead with the durability of a heavier-duty design, Controlled Sound Black Dot heads are well suited for drummers who want articulate response and added reinforcement for harder playing.