The Evans ETP-EC2SCLR-S Standard Drum Head Set is a standard drum head set, consisting of three clear tom heads, with dimensions of 12", 13", and 16". 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.