Hawke Endurance Ed Marine Compact Binocular - 7x50 - For over a decade, Endurance ED optics have been renowned for incredible performance and reliability. Now, with the introduction of the Marine range, Hawke has grown upon this award winning selection with optics that are specifically designed for marine and boating applications. With a range of models to choose from, the Marine Optics family feature binoculars and monoculars to suit any requirement. Advanced BAK-4 roof prism optical systems make far more compact, modern and lightweight optics than the industry norm. 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 Neck Strap Nitrogen purged. Waterproof. Fog proof. Hawke No-Fault Lifetime Warranty.