Features 1. Miniature folding periscope: approximately 43 centimeters long and 3.5 centimeters in diameter. It can be directly inserted into a 6-centimeter wide gap under the door for observation. Adjustable angle, no blind spots, suitable for concealed observation. 2. Full metal alloy shell, professional grade product! Handheld, portable, with a length that can be extended from 43CM to 70CM, and a 2X2CM observation lens. The height of the objective lens can be adjusted up and down, and it has telescope function, which can observe both close-up and long-distance targets. Not detected by the target, suitable for covert observation! Specification Magnification factor 5x, viewing angle: 8.5 degrees Refractive power:+/-5 degrees Diameter: 3.5 millimeters Distance: 20 millimeters Unfolding length: approximately 70CM Retracting length: approximately 43CM Custom Bundle: No Material: Lightweight Aluminum MPN: Not applicable Type: Monocular Weight: 14 ounces Package Include: 1x Periscope 1x Detachable handle 1x Exquisite outer packaging