22" DRUM HEAD WITH A THIN LAYER OF OIL BETWEEN TWO PLIES OF CLEAR FILM TO SUPPRESS UNWANTED OVERTONES. TWO PLIES OFFER CONSISTENCY AND DURABILITY FOR LONGER PLAYING TIME. TWO PLIES OFFER CONSISTENCY AND DURABILITY FOR LONGER PLAYING TIME. A FAT, DEEP AND SHORT SOUND PIONEERED BY EARLY 70'S ROCK AND ROLL. ALSO AVAILABLE IN BLUE AND BLACK VERSIONS. THE ONLY OIL-FILLED DRUM HEAD ON THE MARKET. ALL EVANS DRUM HEADS ARE DESIGNED, ENGINEERED AND MANUFACTURED IN THE USA