This is the Hammerhead Spearguns MV3 Action APEX Two Lens Spearfishing Mask Features: Low volume design Matte silicone mask skirt Optical grade tempered glass lenses Mount compatible with GoPro and other action cameras Soft Black Silicone Skirt This low volume mask features Ultra Clear glass that offers 10% better light transmission for a more clear view of the underwater world. The mask also features a built in mount for action cameras, to capture a first person view of your underwater adventures.