Kowa TSN-880 Series Straight Body High Performance Spotting Scope with PROMINAR Pure Fluorite Lens, 88 mm Green High-performance 88mm spotting scope with a rugged construction and high-end specifications Constructed of strong, lightweight polycarbonate materials Waterproof to JIS class 7 protection standards, and filled with dry nitrogen gas to prevent the lens from fogging Features the option of several eyepieces (sold separately) to fit most any spotting need or preference Weighs 53.6 ounces, measures 13.5 inches in length. Backed by the manufacturer's Limited Lifetime Warranty when purchased only from Authorized North American Dealers