Jack De Johnette Signatures: A very special, thicker than normal texture coating in black. A favorite of jazz and fusion players. These unique drumheads have a very round, full sound, especially for a single ply head. They are quite flexible in sound and can be used in many musical situations. No tape or muffling needed. With Aquarian's "Sound Curve" collar design, the bearing edge finds its own spot in the curve. No wrinkles even with loose tuning. Aquarian drumheads tune fast and easy... every time! Due to constant vibration, conventional drumheads all have some degree of slippage inside the hoop, which results in de-tuning and lack of resonance and response. Aquarian's unique "Triple Locking System" provides drummers with previously unheard of advantages in resonance and playability. Available in: 8", 10", 12", 13", 14", 16