B089NWC87R 8X42 Roof Binoculars Waterproof Professional Zoom Bak4 Prism Optics Telescope for Outdoor with Strap

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*42mm FULLY MULTI-COATED LENSES – Increase light transmission to allow the most light for the best viewing experience.
*ROOF PRISM DESIGN – For streamlined shape and durability.
*BAK-4 PRISMS – Optimize light transmission.
*WATERPROOF & FOGPROOF – Nitogen sealed body for waterproof and fog proof protection in any weather and any environment.
*TWIST-UP EYECUPS – Adjustable eye cups that twist up and down for comfortable viewing with or without eyeglasses.