This document provides information about Steiner optics products. It describes Steiner's commitment to quality, innovation, and durability in their riflescopes, binoculars, and other optics. Product lines discussed include the Nighthunter, GS3, Predator, and Nighthunter XP series. Key features highlighted include proprietary lens coatings, waterproof and fogproof construction, illuminated reticles, and more. The document provides specs and item numbers for various Steiner optics.