A quality 10x bino is hard to beat because it can deliver significant magnification in a lightweight package. With a great field-of-view for dense brush, yet enough power for long-range detection, the 10x42mm BX-1 McKenzie binoculars won't let you down. They deliver class leading low-light performance with our Twilight Light Management System, which simply helps you see more in less light. You also get outstanding resolution and clarity in a rugged, compact design that?s waterproof and purpose built to handle the harshest conditions. Comes with a Pro Gear shoulder strap, binocular case, lens covers, and a lens cloth. Details - Interpupillary Distance Range: 56-74 mm - Weight: 22.0 oz - Linear FOV (ft/1000 yd): 305 - Linear FOV (m/1000 m): 101 - Length: 147 mm - Eye Relief (mm): 13.7 mm - Angular FOV (degrees): 5.8 - Exit Pupil: 4.2 mm - Close Focus Distance: 10 ft/3 m.