sets of lenses for all tasks: The magnifier with 5 interchangeable lenses 1.0X 1.5X 2.0X 2.5X 3.5X can meet your different needs. Ideal hands-free magnifier for watchmakers dentists electricians model makers hobbyists craftsmen magnifying glass for sewing work. Humanized Design Magnifier with Light for Wearing Comfort: Comfortable glasses frame for a safer grip. As for the wearing methods you can wear it with the glass legs or switch to the elastic instead of the legs. Both methods are designed to keep you feeling great with reduced nose pressure and relieved fatigue. Versatile: The individual lenses/magnifiers can be easily assembled and disassembled. Helmet magnifier magnifier perfect for close work such as dentists electricians jewelry sewing crafts beauty painting and the elderly. Two ways of wearing the headband and adjustable LED lights: Alternatively it can be worn as glasses or a headband. The included headband can be attached easily to ensure a secure fit. The moveable magnifier slot can adjust the distance between your eyes and the lens for different needs to ensure precise irradiation of the light source on the surface of the viewed object which makes it more convenient to use. Equipped with two energy-efficient LED lights built into the goggle frame. Lights provide an evenly lit viewing area. The lights run on three AAA batteries which last for long hours. Material: Acrylic lenses + ABS Magnifications with one lens: 1.0X 1.5X 2.0X 2.5X 3.5X Scope of vision: 555 mm (1.0X) 381 mm (1.5X) 278 mm (2.0X) 183 mm (2.5X) 156 mm (3.5 X). Scope of delivery: 1 x reading glasses 5 x acrylic lenses: 1.0X 1.5X 2.0X 2.5X 3.5X