Evans Calftone drumheads are a synthetic alternative to traditional calfskin. They embody the look and sound of a natural skin but with the consistency, fit, and tuning range made standard with Level 360 Technology. These heads bring out the best of a vintage kit and evoke a classic appearance and sound from modern drums.Calftone is made using a 12mil Mylar base blended with unique materials to produce warm, full, and rich tones. As an EQ4, a fixed internal overtone control ring helps focus the tonal response of the drum. Can be be used as both a batter and resonant head.