EASY TO USE: The headband of magnifying glasses is adjustable and easily fits your head and even over your regular glasses or safety goggles. The visor is adjustable and can be tilted up and down as needed COMFORTABLE TO WEAR: You can adjust the switch at the back of the headband to a proper size to wear. Two knobs on both sides can adjust the height of the magnifier to meet your request view angle. Lightweight material and soft breathable sponge inside will make you will feel comfortable when operating 4 INTERCHANGEABLE LENSES: The headband magnifier with 4 interchangeable lenses, 1.5X at 15" focal length, 2.0X 10", 2.5X 7", and 3.5X 6" WIDELY APPLICATION: The hands-free multi-power combined lens magnifications can meet your requirement for different use: reading, painting, observing, modeling, repairing, beading, sewing, soldering, jewelry making, close work, needlework, artwork, and other hobbies/crafts. A very important visual tool for persons involved in the watch, delicate instrumentation and small work WHAT YOU GET: One head mount magnifier, 4 interchangeable lenses, it is a great gift choice for the elder or anyone needs it for close work