Barska 8X32 Waterproof Level Monocular BK-7 Prism Multi-Coated Black. A diamond patterned non-slip rubber armoring gives the user a solid grip while the center focus knob allows the user to easily focus the Level Monocular with one hand. Complementing the optical path is a weather-sealed housing that delivers waterproof and fogproof protection. Multicoated optics and a BK-7 prism combine to provide the viewer with enhanced contrast and clarity. Whatever the application the 10x42mm Level Monocular is well-equipped for quick glassing on the go. Carrying case and wrist strap also included. Specifications for Barska 8X32 Waterproof Level Monocular BK-7 Prism Multi-Coated: Manufacturer: Barska Color: Black Magnification: 8 x Objective Lens Diameter: 32 mm Field of View Linear: 394 ft at 1000 yds Eye Relief: 13.6 mm Weight: 10.4 oz Magnification Type: Fixed Features of Barska 8X32 Waterproof Level Monocular BK-7 Prism Multi-Coated: 8x Magnification 32mm Objective Lens Tough Rubber Armor Multi-coated Optics No-Slip Diamond Texture Grip Compact Pocket Size BK-7 Prism Includes Carry Case and Wrist Strap Limited Lifetime Warranty Focus System Center Prism Type Roof Close Focus (ft/m) 13.7ft / 4.2m Eye Relief 13.6mm Exit Pupil 3mm Field of View (ftat1000yds/mat1000m) 394/131 Package Contents: Barska 8X32 Waterproof Level Monocular BK-7 Prism Multi-Coated Wrist Strap Soft Carrying Case Lens Cloth Barska AA12536: 8X32 Waterproof Level Monocular BK-7 Prism Multi-Coated Black