This Mix box 8 x 40 rugged, high-quality binocular has a high quality objective with 8x magnification and 10mm diameter. This allows for more light transmission, giving you a more detailed and clear image. Suitable for adults, suitable for any occasion, bird watching, camping, adventure, tourism, safari, hiking, sailing, wildlife watching, concerts, opera, sports games. Specification: Magnification: 8 times Objective lens diameter: 40 mm Observation range: 125m/1000m Angle of view: 6.8 Prism class: Bak-4 Focus System: Central Close focus: 4 meters Coating: FMC Colour: Black What's in the box 1 x 8 x 40 full size binoculars 1 x convenient tote bag 1 x instruction manual