The micro folding periscope is designed for effortless observation through gaps as narrow as 6 cm under doors. With an adjustable angle feature, it ensures complete visibility without any blind spots, making it ideal for discreet observation. Constructed with a durable all-metal alloy shell, this professional-grade periscope is both robust and reliable. Its handheld and portable design allows for easy maneuverability, while the adjustable objective lens height enhances usability with its telescope function. Key specifications include: Material: Aluminum Alloy, Color: Black, Magnification: 5x, Field of View: 8.5°, Minimum Length: 43 cm (17 inches), Maximum Length: 70 cm (27 inches), Lens Size: 2x2 cm (0.78x0.78 inches), Weight: 396g (0.87lb), Diopter: +/- 5 diopters, Diameter: 3.5 mm, Distance: 20 mm, and Packaging dimensions: 47.5*12*7 cm (18.7*4.7*2.7 inches). The package includes 1 periscope, 1 removable handle, and a carrying case with a shoulder strap for convenient transport.