The EC2 features a Sound Shaping Technology ring mounted underneath two plies of 7mil film. By controlling edge vibration (instead of eliminating it), the ring isolates and damps higher overtones, enhancing low-end and attack, and enabling a broader tuning range.
The Pack includes one of each
EPP-EC2SHDD-F
EC2S Clear Fusion Pack (10", 12", 14") with 14" HD Dry Snare Batter