This headband magnifier is ideal for precision wire work, craft and beading projects. Headband is completely adjustable. Supplied with 5 lens plates: 1X, 1.5X, 2X, 1.5X, and 2.5X. Magnifier comes with a detachable LED light source and 11 levels of magnification. Operated by two CR6120 cells (included). Comes with complete easy to use instructions. Great for closeup jewelry projects.