The Evans G2 Coated Rock Tom Pack 10, 12, 16'' Heads are made from a 2-ply, 7mil film for a durable and consistent sound. It uses Level 360 technology to extend the playing surface 360-degrees around the edge of the head, providing more tonal options than ever before. The extended vertical collar design gives you a closer, more even contact all around the bearing edge of the shell to increase resonance and tone. Optimum sound quality, extended pitch, and easy tuning are all achieved effortlessly. Use the G2 Coated Drum Head on tom drums for a wide-open, resonant tone and exceptional reliability.