Easy to Use: The headband on these magnifying glasses is adjustable, easily fitting your head and even over your regular glasses or safety goggles. The visor is also adjustable and can be tilted up and down as needed. Comfortable to Wear: Adjust the switch on the back of the headband for a comfortable fit. Two knobs on either side adjust the height of the magnifier to meet your viewing angle needs. Lightweight material and soft, breathable sponge inside ensure comfortable wear while you work. 4 Interchangeable Lenses: This headband magnifier comes with 4 interchangeable lenses: 1.5X at 15\ focal length, 2.0X at 10\, 2.5X at 7\, and 3.5X at 6\. Wide Application: These hands-free, multi-power combined lens magnifiers meet your needs for various applications: reading, painting, observation, modeling, repairing, beading, sewing, soldering, jewelry making, close work, needlework, artwork, and other hobbies/crafts. An essential visual tool for those involved in watchmaking, delicate instrumentation, and small parts work. What You Get: One head-mounted magnifier, 4 interchangeable lenses, 4 plastic screws, and a user manual. Its a great gift choice for the elderly or anyone who needs it for close work. Note: This headband magnifier does not include a light.