Enjoy Steiner's renowned optical performance at a price that makes these an excellent value. With Steiner's Sports Auto-Focus System, everything is in focus from 20 yards to infinity once you set these for your eyes. Rubber armor adds protection and ensures a firm grip in wet conditions. Guaranteed waterproof and shockproof for use in harsh marine environments. A web strap, rain and spray guard for the eyepieces and attached objective lens covers are included. 10-year limited warranty.