26" DRUM HEAD WITH FIXED INTERNAL OVERTONE CONTROL RING PROPORTIONAL TO THE SIZE OF THE HEAD. AN INTERNAL OVERTONE CONTROL RING AND A REMOVABLE MUFFLE RING COUPLED WITH DRY-VENTS WORK EXTREMELY WELL WITH AND WITHOUT A MICROPHONE. AN INTERNAL OVERTONE CONTROL RING AND A REMOVABLE MUFFLE RING COUPLED WITH DRY-VENTS WORK EXTREMELY WELL WITH AND WITHOUT A MICROPHONE. SINGLE PLY OF 10MIL FILM OFFERS FULL, WIDE-OPEN TONE. ALSO AVAILABLE IN A CLEAR VERSION. ALL EVANS DRUM HEADS ARE DESIGNED, ENGINEERED AND MANUFACTURED IN THE USA.