# 20 X 60mm magnification # Waterproof & nitrogen-filled (JIS Class 6) # Submersible up to 1 m # Aluminum diecast body for strength & durability # Long eye-relief # Mechanical focus lock allows user to lock in at a specific distance for convenient focus-free viewing # Click-stop diopter adjustment locks in right eyepiece diopter setting # Ruggedly constructed # Rubber housing protects the internal optical & mechanical systems # Helicoid eyepiece ring with 4 click stops give the most comfortable eye relief # Limited lifetime warranty
