Featuring a high 10x magnification and a Bak-4 prism system the highest quality prism system on the market the Firefield 10x42 Binocular delivers brilliant light, pure visuals and vivid landscapes. Nitrogen-filled and water resistant, this binocular is built for reliability; ensuring users get the most out of every use in the field. The exterior is coated with a rubberized armor for a solid grip and protection against minor impact.