Evans EC Snare Drum Head, 13 Inch 13" snare batter drum head made using two plies of film. An outer ply of 7mil and an inner ply of 10mil film Edge Control technology pre-EQs the sound, removing troublesome mid-range overtones that muddy the snare drum's sound Also available in single-ply and 2-ply version with a reverse dot All Evans drum heads are designed, engineered and manufactured in the USA