Carson Stinger 10x25mm Compact Binocular Matte Brass. Specifications for Carson 10x25mm Stinger Compact Binocular: Manufacturer: Carson Color: Brass Magnification: 10 x Objective Lens Diameter: 25 mm Eye Relief: 12 mm Exit Pupil: 2.5 mm Field of View Linear: 288 ft at 1000 yds Optical Coating: Multicoated Binoculars Focus System: Center Focus Close Focus: 13.1 ft Length: 1.3 in 4.5 in Weight: 0.491 lb Finish: Matte Package Type: Box Included Accessories: Pouch Magnification Type: Fixed Features of Carson 10x25mm Stinger Compact Binocular 10X Magnification center focus knob Package Contents: Carson 10x25mm Stinger Compact Binocular Pouch wrist strap and lens cloth Carson HW-025: Stinger 10x25 Compact Binocular Brass