This double film skin - 7 mil (0.18mm) thick each film - has extraordinary consistency and durability. With the porous UNO Genera G2 the suspended tones gain well-defined harmonics and the muted ones, full-bodied bass. With the possibility of high or low tuning to suit a variety of styles, the porous UNO Genera G2 responds to a focused range and a sharp attack. When used in response, the porous UNO Genera G2 adds focus to any drum, especially the muffled ones, which help larger drums project themselves.