Steiner Military-Marine 7x50 BinocularsThe Steiner Military Marine 7x50 Binoculars are the civilian equivalent of the tried and true military binoculars that Steiner prides themselves on. But they're just as rugged: the Floating Prism System combined with the NBR rubber armored, Makrolon polycarbonate housing help the binoculars withstand up to 11 Gs of impact! The housing is also waterproof and easy to grip securely. The Sports Auto Focus system eliminates the need for a focus wheel,