Size and 5X 11x Magnification: 193 x 90 x 26mm; Lens diameter: 75mm, 19mm; Magnification: 5X (large lens); 11X (small lens); Material = ABS, optical lens acrylic Superb 5X (500) and 11X (1100%) magnification powerfor more detailed tasks. Whether you're working with books, newspapers, maps, stamps, or jewelry, you can get accurate views at 5x magnification with our distortion-free, professional-grade lenses. With Foldable Stand, Height Adjustable: Compact and stylish design, portable weight, easy to use, 3 movable joints ensure the stand can be stretched to any height as you need when used as a magnifying glassOffice. 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. Brightness can be adjusted to make the working environment more comfortable,improve work efficiency, effectively protect vision and prevent visual fatigue. USB and Battery Power- 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 Magnifier: The magnifier can be used as a desktop magnifier by stretching its stand and placing it on the table. It can also be folded like a handheld magnifier for a wider range of applications.