Interchangeable lens slot design: 4 interchangeable lenses, the magnification is 1.2 times, 1.8 times, 2.5 times, 3.5 times and 4 lenses to meet your different tasks. Suitable for professional jewelry magnifying glass, watch repair, electrician, sewing, handicraft, hobby, repair or as a general reading tool. High-quality lens: made of shatterproof crystal transparent magnifying acrylic lens, high-definition, . Perfect for people with low vision, amateurs and . Adjustable headband adjuster: The headband magnifying glass has a rotating button design, which can be used to adjust the size of the headband, suitable for anyone. By rotating the button, you can adjust to the size that best fits the shape of your head, avoiding being too big or too small. Comes with LED headlights: LED headlights have the function of adjusting the lighting direction. When in use, you can adjust the LED lighting direction to obtain a more precise lighting angle. The lighting unit can be put down as an flashlight for daily or outdoor adventures. Powered by 2 AAA batteries. Very suitable for the elderly, jewelry works, repairs, electricians, welding, watch repairs, painting, dentists, handicrafts, sewing or as general reading tools. Product model: MG81001-C Effective diameter: 100 (mm) Colour: black Material: ABS+metal+acrylic Size: 255x195x80mm Package Contents: 1 * Headband Magnifier 4 * Lens Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.