Carson BlackWave 10x25mm Waterproof Monocular (WM-025) 10x25mm Waterproof Monocular Rugged Waterproof Design is Perfect For the Outdoors Close Focus Feature of Just 4 Feet | Prism Type: BK-7 | Weight: 4.4 oz. | Nitrogen Filled Glass Lenses Field of View: 273 feet at 1,000 yards | Eye Relief: 12mm | Included with Pouch, Strap and Lens Cloth Backed by Carson's No Fault, No Hassle Warranty