TrailMaxx 10x25mm binocular, compact and lightweight, Magnification: 10x, Objective Lens Diameter: 25mm, Prism Type: BAK-7, Lens Coating: Multi Coated, Field of View (ft. At 1000 yards): 288 at 1,000 yards, Eye Relief: 10.5mm, Dimensions: 4.125in x 1.375in x 4.625in