Thank you for viewing. REMO Drum Heads CONTROLLED SOUND 12” 13” 16” set. 12” CS-0312-10- CONTROLLED SOUND Clear 13” CS-0313-10- CONTROLLED SOUND Clear 16” CS-0316-10- CONTROLLED SOUND Clear [From the Manufacturer] A "black dot" film is attached to the center of the clear film to cut out unwanted overtones. When used on the batter head, it provides a thick attack, and when used on the bottom, it moderately suppresses sustain, tightening the sound. ● Emphasizes open tone and attack Although it is new and unused, it has been in storage for a long time, so we would appreciate it if you could understand. Please consider it.