Bifocal Magnifier: Magnifying glass magnifier with 2 adjustable LED lights to help it work in low light conditions. A very helpful visual impairment aid for people with macular degeneration or low vision. With Luminous Magnifier: Left and right double-eye patch magnifier with adjustable LED to help work in low light conditions. A set of 2 magnifiers mounted on an appropriately sized eyeglass frame for hands-free operation. Comfortable and Fatigue-Free: Comfortable and fatigue-free Hands-free glasses, the holder and headband can be interchanged to ensure a more comfortable and tighter fit. Comfortable eyeglass holder or switch to headband to ensure tighter wearing and less fatigue during long time use. Multi Magnification LOUPE: Magnifying glasses are mounted on a black frame that can be adjusted while keeping your hands free for comfort. These are top of the line, with a magnification range of 8x15x23x that is unmatched! To maintain the best condition, we recommend frequent cleaning with a microfiber cleaning cloth. High Definition and Hobby: These are super handy for applications and hobbies that require fine detail and careful inspection. Can be used for jewelry making, coin and stamp collecting/making, electronics, model making, science, watch repair and fine printing.