Bleiou Quality Assurance Zoom HD Outdoor Monocular Space Astronomical Telescope With Tripod 360/50mm Spotting Scope Refractive / Focal Length: 360mm, optical aperture: 50mm Can set 60 times, 18 times, the mirror group plus 1.5x 90 times, 27 times. Theory Resolution: 2.000 arc seconds This Visionking 360x50 refractor scope is a compact and universal telescope with bright image quality and high magnification power. It is suitable for astronomical observations and for terrestrial use as a powerful spotting scope, with 50mm Objective Lens Diameter and Fully multi-coated, so it has very clear images even in low lighting Box size: 440mm * 210mm * 100mm