10-300 X 40mm Stretching Monoculars Portable HD High-Power Telescope Suitable for Hiking, Hunting, Camping, Watching Football Games

Specification: Objective Lens Diameter: 25mm Magnification: 10x300 Eyepiece Diameter: 12mm Exit Pupil Diameter: 4.2-1.7mm Eye Relief: 14-12mm Field…