BRUNTON Echo Pocket Scope 6" high 3" wide ROBUST - The Echo has rubber armor and a polymer frame that protects the monocular from bumps and falls, and provides a good grip. SHARP IMAGE - Multi-Coated optics increase light transmission by reducing reflected light. The BaK-4 prisms offer excellent light transmission for sharp images. PORTABLE - Weighing only 1.8 oz, Echo is a light and easy tool for traveling. WIDE-RANGE - Bruntons Echo has a field of view of 181 feet at 1,000 yards. POWER - The scope has a power of 7x18 giving you a sharp image for distant objects. Brunton Echo Pocket Scope 7x18 monocular comes with lanyard, carry case, and lint cleaning cloth Near focus of just 13 inches and 181 foot field of view at 1,000 yards Objective diameter: 18mm; Eye relief: 12mm; Exit pupil: 2.6mm; Field of view: 181 ft. @ 1,000 yds. Polymer frame; Includes: lanyard and case One-year warranty