"These Zeiss binoculars have unprecedented optical excellence in a truly miniature package -- all with the incomparable color contrast, fidelity and resolution for which Zeiss is famous. Great for vacations, sporting events, wilderness expeditions. Eyepieces have lockable, push-pull cups to ensure full field of view with or without eyeglasses.Easy-grip central focusing. Anti-fog nitrogen filling. Black rubber armor for no-slip grip. Waterproof construction. Single-jointed hinge literally folds into your shirt pocket. Field of view (1000 yds.) 285'Exit pupil 2.5mm. 4.7 x 3.8""8.8 oz. 2nds (refurbished). Full lifetime warranty. Hungary."