10 * 42 Binoculars, BAK4 Prism, IP68 Waterproof Portable Binoculars with FMC Lens, with Tripod Adapter, Professional Powerful Binoculars for Bird Watching, Black

SKU: KF33.082

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The telescope's objective and eyepiece lenses feature BAK4 prisms and multi-layer coatings for a great viewing experience. 
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The telescope has a light transmission of up to 99% for optimal brightness. 
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The binocular shell is made of environmentally friendly, odorless rubber material. The surface of the binoculars is nicely matted and effectively prevents slipping. 
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Eyepiece diameter: 10mm, lens diameter: 25mm, viewing distance 101/1000m, weight only 256g, light transmittance 99%, which children can fulfill daily observation.