Material: Plastic shell + glass lens - Portable and convenient design easy to carry - Magnification: main lens 30X 20mm; small lens 45X/60X 9mm Great magnifier for industrial purposes such as circuit board inspection and the printing industry medical science gardening coin and stamp collecting education geography etc - With 2-LED bright white light + 1-LED UV money detector - Powered by 3 x LR1130 batteries (included) - Comes with English user manual + strap (17.5cm)