Feature:1. Adopt 3pcs AAA batteries (not included) or directly connect to the power supply, the power supply is sufficient, to avoid the inconvenience caused by frequent battery replacement.2. High quality optical lens, high transparency lens, high definition imaging, display in the whole field of view.3. Includes 3X large lens, 25X medium lens, 4.5X small lens. Meeting different demands.4. 10pcs High brightness LED light chips, uniform light, easy to read at night, no harm to the eyes.5. Metal + plastic material, comfortable to hold, easy to use, can be used during repairing and maintenance work.Specification:Item Type: Desktop Magnifying GlassMaterial: Metal + Plastic Use: Can be used during maintenance, convenient for your maintenance work, can also be used for reading, LED light can facilitate reading at nightLens Size: Approx. 72mm / 2.8in Large Lens 30mm / 1.2in Medium Lens22mm / 0.9in Small LensPower Supply: 3pcs AAA (Not included) or directly connect to the power supplyUse Steps: Directly put the article in the iron plate for magnified observation, but also can install the auxiliary clip, with the auxiliary clip on the object under the magnifying glass for observation .Package List:1 x Magnifying Glass1 x USB Cable 1 x Iron Plate 2 x Auxiliary Clip2 x Screw 1 x Accessory