Features Wide Applications: Head magnifying glass is ideal for machining, jewelry appraisal, watch repairs, micro engraving, and more. Meet Different Needs: The head magnifier is include 4 pairs of interchangeable lenses with different magnifications(10X, 15X, 20X, 25X) for quick interchange. With LED Lights: Left and right binocular patch magnifiers with adjustable LEDs to help work in low ambient light conditions. Widely be Used: The head magnifier is ideal for industry, electronics, education, geography, medicine, micro engraving, watch repair, insect observation, coins and philately. Convenient and Practical: This head magnifier is a binocular magnifying glass that works great to help you read small print more easily, very practical. Specification: Item Type: Head Magnifying Glass Material: ABS, acrylic glass Magnification: 10x 15x 20x 25x Batteries: 3 x AAA batteries (not included) Ideal for industry, electronics, education, geography, medicine, micro engraving, watch repair, insect observation, coins and philately Package List: 1 x Magnifying Glass 1 x Rubber Band 4 x Lenses Pairs(10x, 15x, 20x, 25x)(25x mounted on body) 2 x Lens Storage Box 1 x User Manual Package List 1 x Magnifying Glass 1 x Rubber Band 4 x Lenses Pairs(10x, 15x, 20x, 25x)(25x mounted on body) 2 x Lens Storage Box 1 x User Manual