Built from the ground up as a monocular ready for anything. Designed to pack easily, and be held effortlessly, the Zoom Tube is the monocular you wished you had all along. Top shelf optics in a compact go-anywhere package. Features:- Water Resistant (IPX4) Wide Field of View (384ft @ 1000yds) Fully Multi Coated Lens + BaK4 Roof Prism Rugged Impact Absorbing Housing + Scratch Resistant Lenses Twist Up Eyecup, compatible with glasses