Size and 5X 11x Magnification: 193 x 90 x 26mm; Lens diameter: 75mm, 19mm; Magnification: 5X (large objective); 11 X (small lens); Material = ABS, acrylic optical lens. Superb 5X (500) and 11X (1100%) magnification power for more detailed tasks. Whether you're using books, newspapers, maps, stamps or jewelry, you can get precise views at 5x magnification with our professional quality lenses without distortion. With foldable stand, adjustable in height: Compact and stylish design, portable weight, easy to use, 3 movable joints ensure the stand can be stretched to any height as needed when used as a desktop magnifier. With a comfortable ergonomic handle suitable for children, adults, seniors, amateurs and professionals. Lighting: 8 LED lights ensure an evenly lit viewing area. (3 AAA batteries not included) for grinding, welding and cutting, good quality leather. The brightness can be adjusted to make the working environment more comfortable, improve work efficiency, effectively protect vision and avoid visual fatigue . USB and Battery Powered - You can connect your computer, laptop or mobile power (without the USB charger) via USB cable. It can also be powered by 3 AAA batteries (battery not included). Pocket or desktop magnifying glass: The magnifying glass can be used as a desktop magnifying glass by extending its stand and placing it on the table. It can also be folded as a handheld magnifying glass for a wider range of applications.