40x jeweler's loupe with integrated LED lighting for precise inspection of precious stones and metals

Materials: Aluminum alloy, plastic, acrylic optical lens. Dimensions: 58 x 33 x 25 mm. Features: 1. Wide range of applications: office, hospital, school, printing shop, home, electronics, philately, jewelry appraisal, machining, etc. 2. Compact, easy to carry and store. 3. Thanks to its LED light, it can be used in the dark. 4. With 40x magnification, it provides a very clear image. Battery replacement: Insert the included key into the two holes on the battery cover, turn it counterclockwise to unlock, remove the old battery, insert the new battery, and then turn the cover clockwise to screw it back on. Package contents: 1 x Magnifier.