[Material] The use of high-quality acrylic optical lens, clear observation, visual comfort. Eyeglass style, free hands, simple operation, more comfortable wearing experience. Lightweight and sturdy. [Magnification] 10X/15X/20X/25X, four sets of lenses with different magnifications, can be interchanged according to demand. The angle of the lens can also be adjusted by 180. [Design] Lightweight ergonomic frame, soft padding for all head sizes; retractable temple support; irradiation angle 2 led lights can be adjusted to accurately illuminate your workplace. [Scope of application] Suitable for machining, welding, electronic maintenance, watch repair, DIY engineering, hobby craft, electronic welding, jewelry antique identification, biological observation, reading, etc. Get fit safely and keep your hands free. [Tips] Do not put this head-mounted glass directly in the sun to avoid fire; and do not use a glass to observe the sun to avoid burning the glasses. Welcome to our store, we will serve you before and after the sale. If you have any questions, please feel free to contact us. Feature: 1. Glasses-style, free your hands and use more convenient. 2. LED lights, can work in dark or low light; 3. Ergonomic frame, soft padding for all head sizes; 4. Four sets of lenses with different magnifications, suitable for a variety of purposes, free to interchange. application: Suitable for machining, welding, electronic repair, watch repair, DIY projects, hobbies and crafts, electronic soldering, jewelry antique identification, biological observation, reading, etc. specification: Lens material: Acrylic optical lens Material: plastic, metal Multiple: 10X.15X.20X.25X Battery: 3 LR1130 button batteries Tips: Do not place it directly in the sun to avoid a fire; Do not use a glass to observe the sun to avoid burning the glasses. We value the shopping environment of each customer If you are not satisfied with our glass, you can go to our store to purchase other styles of glass. In the renderings, we only sell g prompt: All product parameters may have a small range of errors, the dimensions are for reference only, subject to the actual product We are committed to providing good quality services, if you have any needs, welcome to consult,we will do our best to meet