OCEAN 7500WP Features: Full-Size Marine Binoculars High-Quality BaK4 Porro Prisms 7x Magnification 6.9° Real Angular Field of View Minimum Focus Range of 13.1' 367' Linear Field of View 16.7mm Eye Relief 50mm Objective Lens Diameter 100% Waterproof & Fogproof 7.1mm Exit Pupil Diameter 50.4 Relative Brightness 132.3 Twilight Factor Center Focus Type Ideal For Use Near Water Carrying Bag & Floating Neck Strap Included Dimensions: 7.5" x 8.5" (190 x 216mm)