Features: . ★Magnifying glasses with light: This magnifier built-in 6 LEDs, 3 white lights for normally magnified observation and 3 UV lamps for magnifying glass money detector. ★30X Magnification 25mm Dual Lens: 25mm/0.98 inch diameter, this double-layer glass optical lens provides clearing imaging and good light transmission. The 30X lens is perfect for miniatures, jewelry or professional inspection. ★Sturdy and : Made of solid zinc alloy material with a black paint finish. There are two precision weights: 1/16 inch and 0.5mm on the base. You can quickly measure the size of an object. This microscope magnifier is quite and not easy to damage. ★Hands-free and easy to operate: The focal length of this table magnifier is fixed and there is no need to adjust. Simply place the magnifying glass anywhere on the table and place the object in the center of the scale. The white lights and UV lights can be easily turned on/off with just one button. Specifications: Color: Black, Silver Material: Zinc Alloy, Optical Glass Size: 61 × 56 × 50mm/2.40" × 2.20" × 1.97" Weight: About 160g / 5.6 ozMagnification: 30X Batteries: 3 × AG7 (Included) Applicable to stamps, coins, print identification, ancient calligraphy and painting, textiles, etc. Usage:Observation method 1: leave the magnifying glass close to the object to be observed, and keep the distance between the human eye and the object being observed unchanged. Then move the handheld magnifier back and forth between the subject and the human eye until the image is large and clear. Observation method 2: magnifying glass as close to the eyes as possible. The magnifying glass does not move by moving objects until the image is large and clear. Note: Transition: 1cm=10mm=0.39 inchPlease allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 × Desktop Metal Magnifier