ProMariner Watersport 7 X 50 Marine Binoculars (7 x 50 Water/Fog Proof Float) Waterprooffogproof Nitrogen filled Center focus | BAK 4 prisms | Retained lens caps | Ruby coated lenses Power 7x50 | Field view angle 6.6 | Field of view: 116m1000m Floats if dropped overboard