Barska Crossover Waterproof 8x30mm Porro Binoculars Black Small. It features BAK-4 prisms with fully multi-coated optics that result in remarkably bright images. It features a nitrogen-purged body that is 100percent waterproof and fogproof with a non-slip shock absorbing rubber armor that gives you a firm grip. Adjustments such as twist-up eyecups let you customize these binoculars to your personal preference. Built to withstand the rough outdoors the 8x30mm Crossover Waterproof Binoculars whether you are hiking bird watching or hunting these binoculars will crossover from one environment to the next. Includes carrying case and neck strap. Specifications for Barska Crossover Waterproof 8x30mm Porro Binoculars: Manufacturer: Barska Color: Black Magnification: 8 x Objective Lens Diameter: 30 mm Prism System: Porro Weight: 20.3 oz Features of Barska Crossover Waterproof 8x30mm Porro Binoculars 8x Magnification 30mm Objective Lens Fully Multi-Coated Optics Nitrogen-Purged Body Non-Slip Shock Absorbing Rubber Armor BAK-4 Prisms Large Center Focus Knob Twist-up Eyecups Waterproof and Fogproof Package Contents: Barska Crossover Waterproof 8x30mm Porro Binoculars Carrying Case Neck Strap Barska AB13530: Crossover Waterproof 8x30mm Porro Binoculars Black Small