Adult Monocular Telescope, HD 12x50 Monocular Telescope with Handheld Tripod, Waterproof Full Optical Prism, Adult Dual Focus Telescope HD Vision: 12x50 High Power Adult Pocket Telescope - Full 12x magnification and 50mm diameter monocular lens. This monocular telescope has a wide field of view and provides clear images for bird watching, hunting, hiking, camping, sightseeing, etc. Unique Waterproof Design: This waterproof monocular telescope has a built-in dust cover and O-ring to seal the optical components. The mirror is filled with high-purity nitrogen, which is waterproof and fog-proof. It can adapt to different climates and environments. Easy to Install: The mobile phone monocular telescope comes with a sturdy smartphone holder and a quick-adjust tripod. It is easy to hold with one hand, and the scratch-resistant rubber armor prevents it from slipping out of your hand. Surprise Gift: The small glasses are an ideal gift for women, men, teenagers, outdoor sports enthusiasts and nature explorers. Package includes: 1 * Monocular Telescope Only the monocular telescope is included, mobile phone and bracket are not included Lens diameter: 5OMM Size: 16 * 42CM Lifetime waterproof: Yes Lens: full optical lens Eyepiece diameter: 20MM Field of view: 131m / 1000m Prism material: BAK4 Due to manual measurement, the size may be slightly different Due to the different monitor screens, there may be some differences in color from the actual object, thank you