Powermax® Ultra White marching bass drumheads provide supreme tone control, attack, low-end projection and a clean, white finish. Powermax® bass drumheads feature a free-floating internal muffling ring alongside a Bottom White Dot for added tone control and durability. A single 7-mil Ultra White film is built in combination with Remo’s Crimplock® hoop to provide a supremely wide tuning range and increased stability.