Worldoor &reg; New Fashion Professional Jeweler's Lighted Magnifier Visor- 5 Lenses 5 interchangeable lenses in powers 1.0, 1.5, 2.0, 2.5 3.5X scratch-resistant acrylic reduces weight Comfortable eyeglass frame with rubber nose-pads or switch to headband for more-secure fit Perfect for jewelry work, watch repair, arts & crafts or as general reading aid Headlight with 2 super-bright LED - powered for 30 hours by 3 button-cell batteries (included) See your workpieces or text magnified up to 350% original size with brilliant clarity