Product Description The two 7mil plies of the G2 bass head offer a wide-open response and undeniably fat low-end. It delivers an open, full resonance that you can tailor to taste with any manor of internal damping. From the Manufacturer Evans 20" clear G2 two-ply bass head is designed for a perfect blend of depth, sustain and attack while featuring extraordinary consistency and durability. Evans G2 series features two plies of 7mil film offering maximum durability, wide-open response and undeniably fat low-end. A modern, full resonance you can tailor to taste. For over 40 years, Evans has been a pioneer of drum head manufacturing and design. Known for innovative designs such as EMAD, EC2S, and the Hydraulic series, Evans drum heads are made in the USA in a state of the art manufacturing facility. Acquired in 1996 by D’Addario and Company, the global leader in musical instrument accessories, the Evans brand is synonymous with quality and consistency.