For jewelry loupe easy to see bright LED light with. It is recommended for observation and for jewels. Also carrying around is convenient foldable compact body. [Product Specifications] Magnification: 10 times Lens diameter: 25mm Size Lens Storing: (about) H5.3 x W3 x D2.5cm Lens used: (about) H9.5 x W3 x D2.5cm Weight: (Approx) 25g Power: button battery (LR927) x 3 (test battery included) Light: LED light 2 light [Package Contents] Body Test battery