Evans EC2S Clear Standard Tom Drum Set Pack (12", 13", 16") - Professional Quality Drum Kit for Live Performances & Studio Recording - Perfect for Drummers, Music Schools, and Band Practice

The EC2 features an Edge Control ring mounted underneath two plies of 7mm 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.