??8x magnification 21mm lens diameter?? - These binoculars are made of optical glass with a clear image and a full-line light film that does not easily cause dizziness. The larger the objective lens, the wider the field of view and the sharper image. ??Robust and eye protection?? - Children's binoculars have horn-shaped eyecups that prevent compression of the eyeball. It is for children and also for those who wear glasses. ??Easy to use?? - The central adjustment knob is used to quickly regulate the definition of vision, the diopter adjustment for fine focusing. Easy to use for children. ??Wide application and lots of fun?? - The kids mini binoculars for bird watching, learning, stargazing, hunting, sports games, theater, boat trips, hiking, traveling, summer fun and enjoying the Wilderness. ??Important Note?? - Do not observe the sun directly with this monocular binocular; Please do not clean the inner parts of the telescope or disassemble the binoculars. Description: The telescope is a cool and practical device with 8x magnification. The monocular with durable and non-slip rubber surface, very comfortable to hold and carry, especially for children. Very easy operation and clear visibility make these binoculars very popular for outdoor activities such as camping, hiking, travel, concerts, ball games Game, wildlife watching like bird watching etc mini children binoculars binoculars for children Technical data: Enlargement: 8x net weight: approx. 219g Small size: approx. 9.8 * 6.8 * 4.8 cm Lens diameter: approx. 21 mm field of view: approx. 122 m-1000 m exit pupil: 12.5 mm prism system: BAK-9 Porro Prism Prism Material: BAK9 roof type: Rotate the lens coating: MFC Broadband Blue Film children's telescope monocular telescope play tower Material: optical lens / rubber dual focussing focusing system: Center focus mode: Lens adjustment + central wheel adjustment (dual focussing) Waterproof: Filled with nitrogen, this monocular is waterproof and moisture-proof, fog-proof, mold-proof and dust-proof.