Our HVM3 headband magnifier is a hands-free magnifier that is worn over the head leaving both hands free for working. Headband is fully adjustable and flips up when not in use...easy adjustment fits any size quickly and easily with its dial a size adjustments. Ideal for Jewelers, tool & die makers, engravers, watchmakers, stamp and coin collectors, needlepoint, physicians, dentists, pharmacies and hospitals. Our 1.75x lens gives you an versatile and comfortable working distance of 14" or 355mm ideal for most applications. Can be worn over glasses. Durable impact resistant materials. Our HVM-3 is one the best value headband magnifier available.