Hawke Endurance Ed Marine Monocular - 7x42 - The Endurance ED - Marine Edition monoculars incorporate stunning optical clarity and sharpness in robust chassis and feature optical systems that most benefit marine environments. Smooth and precise focus adjustment and advanced BAK-4 roof prism optical systems make far more compact and lightweight optics than the industry norm. Supplied with hi-vis floating straps and protective storage cases, these sleek models have a waterproof rating of IP67 and are purpose-built for the environment they live in. Features: 7x Magnification Perfect For Marine Applications Extra-Low Dispersion (ED) Glass Phase Corrected High Resolution Phase Corrected BAK-4 Roof Prisms Twist-Up Eye Cups With Position Stops Stay-On Lens Covers Floating Wrist Strap