Product Name: Magnifier Material: Metal, plastic, glass Dimensions: The overall length is 310mm, the main lens diameter is 130mm, the secondary lens diameter is 22mm, and the hose length is 252mm. Magnifying glass type: Desktop Magnification: 10 times the primary mirror and 20 times the secondary mirror Scope of application: reading books, reading, field trips, family, office, etc. Instructions Compatible with use: Due to the high multiple, when used, the magnifying glass is about 1cm away from the cup, and the eyes are close to the magnifying glass. It can be used Compatible with , antique identification, skin pore observation, detail observation, reading light. Magnifying glass imaging principle: The closer the magnifying glass is to the object, the smaller the image is. The farther the magnifying glass is from the object, the larger the imaging, the object distance must be within the focal length of the magnib?High power magnification? bThis magnifying glass provides times magnification, allowing users with low vision to read text regardless of size. bNote b: This section only sells magnifying glasses.Other products on the image are only used to reflect the suitability of the product and are not included. bLarge size field of view is larger. Reading light transmittance is high and low.The shape is low and the dispersion effect is good.The LED light is convenient Compatible with nighttime or dim.Optical resolution b: about 10 times magnification using high transparency glass lens imaging clear magnification effect is not easy to dizzy. bSize b: The overall length is 310mm, the main lens diameter is 130mm, the secondary lens diameter is 22mm, and the hose length is 252mm. b bMain frame: The metal feels fine and wear-resistant and stable.Lens: high transmittance, wide field of view and easy to read.Base: The metal weights are more stable.Support hose: Metal material can be bent at any angle to change the angle and use more conveniently.Lamp power source:.