This great product will make your next diving or snorkeling adventure more comfortable. Features of this wonderful product include: Added comfort to your mask strap Helps keep long hair from getting tangled in the silicone mask strap Fits over most all mask straps. Nylon with easy adjust buckle closure makes it easy to put on strap. May help float masks. Extends mask strap life. Dive in comfort with this great padded mask strap.