SVBONY SV39 8x42 BAK4 Prism Binoculars Waterproof Professional High Power Telescope Hunting

42mm Fully Multi-coated Lenses, increases light transmission to allow the most light for the best viewing experience BaK-4 fully multi-coated prisms Fully coated optics for superior light transmission Non-slip rubber armor provides firm grip Perfect for sporting events and nature observation