Open Box Tusa Visio Pro Dive Mask Diving Gifts and Apparel 3-D ‘rib-knit’ fabric construction for Underwater Lenses Ports and Lens Gear Aesthetically Color:Black/Sapphire 217999-07

3-D ‘rib-knit’ fabric construction for superior insulation properties

Protective - 8mm-thick treaded sole provides premium protection against punctures

Power Source: 3 x AAA alkaline batteries

Built to take advantage of the GLONASS system/constellation of satellites as well as standard GPS

3/4" - 14 NPSM standard inlet threads

Open Box Tusa Visio Pro Dive Mask Diving Gifts and Apparel 3 D ‘rib knit’ fabric construction for Underwater Lenses Ports and Lens Gear Aesthetically Color:Black Sapphire 217999 07 3 D ‘rib knit’ fabric construction for superior insulation properties Protective 8mm thick treaded sole provides premium protection against punctures