Free Express Shipping! Osprey Global 10x42 Green Binoculars Slim Roof Prism Design, 10x Magnification for Distant Details, BAK4 Roof Prism Glass, Fully Multicoated Lenses, Fog and Waterproof, 4.2mm Exit Pupil, 310' FOV at 1000 yd, Argon Gas-Filled