LEMONBEST Watch Repair Magnifier Loupe Jeweler Magnifying Glasses Tool Set With LED Light 10 X 15X 20 X 25X 4 Pairs of replaceable lens included, with different magnifications (10X, 15X, 20X, 25X), can be interchanged quickly; Widely used for inspection, Too high magnification can NOT to read books Left right double eye patches magnifierloupe with adjustable LED to help work in low-light conditions ( Battery Included) Note: Short Focal Distance from lens to product is 0.2-2 inch (0.5-5cm), just like the principle of microscope; For nice magnification, you can lift one of the lens up and use in one eye at a time; For longer focal point model, please refer to ASIN: B01MF5ZJSA Material: durable hard ABS plastic and optical lens, Color: mainly black Eye patches can be moved leftwards and rightwards, and can rotate 180 degrees upwards and downwards. Great for collections, circuits, jewelers and watch inspection, and etc.