The Aquarian Performance II Texture Coated drumhead is a two-ply head (7 mil per ply) with a durable Satin Finish™ texture coating that's manufactured with their Vacuum Process, which eliminates air bubbles and wrinkles between the two plies. This head helps you get a big, fat, low tom tom sound reminiscent of what you'd find on classic rock and roll records. Performance II™ drumheads were designed for loose tuning to get the depth and punch with no over-ring. This drumhead is sealed around the edge to create that really deep sound on the tom toms.