See your workpieces or text magnified up to 350% original size with brilliant clarity * 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 * Headlight with 2 super-bright LED - powered for 30 hours by 3 button-cell batteries (included) * Perfect for jewelry work, watch repair, arts & crafts or as general reading aid