The Aquarian Super Kick II (SKII) Bass Drumhead uses Two-7mil plies of NEW BRITE drumhead film and features Aquarian's patented "Floating Muffling System".
The Ambassador® SMT™ Coated bass drumhead is a pre-muffled design featuring Sub Muffl® Technology - 10-mil single ply Coated film featuring a pre-Muffled design with Sub Muffl® Technology - BR132200SMT