This neoprene muzzle will surround the head of your sub and help remind them that they are yours to control. The perforated front allows them to breathe, while the soft, pliable material covers their lips and jaw. The snaps at the back allow you to quickly and easily adjust the size, for a secure fit on practically any size. Measurements: Top strap adjusts from 21 to 28 inches in circumference, bottom strap adjusts from 16 to 20 inches in circumference. Material: Neoprene, metal. Color: Black