Feature: 1. HIGH QUALITY MATERIAL: The lens is made of optical glass, with high magnification, suitable for observing small objects and text. 2. ERGONOMIC: The shape of the handle adopts an ergonomic design concept, which is comfortable to hold and not tired for a long time. 3. PUSH SWITCH: The light source control of the LED magnifying glass adopts a soft push switch, which is light in hand and has high sensitivity. 4. EASY TO OPERATE: After pressing the LED light switch, you can observe the object. Multifunctional high magnification 10X magnifying glass. 5. APPLICABLE: Widely used in office, school, outdoor, home, printing, welding, biological observation, jewelry and antique appreciation, etc. Specification: Item Type: Magnifying Glass Model: ZB-7790-12 Material: ABS+Optical Glass Size: Approx. 230 x 107 x 30mm/9.1 x 4.2 x 1.2in Lens Diameter: Approx. 83mm/3.3in Battery: 3 x AAA 1.5V Battery(Not Included) With Light: 12 x LED Light Multiplier: 10x Usage: Object Observation Scope of Application: Office, School, Outdoor, Home, Printing, Welding, Biological Observation, Jewelry and Antique Appreciation, etc.. Package List: 1 x Magnifying Glass(Battery Not Included)1 x Manual Note: 1. The magnifying mirror is made of glass, and it is necessary to avoid incisive objects that are easily scratched and broken.2. Do not observe the sun with a magnifying glass to prevent burns or cause fires against flammable objects.3. Please allow some errors due to manual measurement.