Powersonic® Clear Bass drumheads feature focused lows with increased attack. Constructed with 2-plies of 7-mil and 5-mil Clear film, Powersonic® Clear bass drumheads provide two specifically placed subsonic dampening rings and external snap on dampening system with impact patch for more attack. The external snap on dampening system allows you to customize you sound for different playing situations. • The external snap on dampening system allows you to customize your sound for different playing situations • 2-plies 7-mil and 5-mil Clear film • Features specifically placed subsonic dampening rings and external snap on dampening system • Focused low-end with increased attack