HAT-EYES by the makers of the popular "Mag-Eyes". Finally a SUPER HIGH QUALITY "clip-on-the-hat" MAGNIFIER offered in a variety of magnifications. Stainless steel construction with high-grade acrylic binocular lenses. HAT-EYES securely attach to brim of cap, and the lens flips up under the brim of your hat when not in use. Great for reading sight tapes and working with tiny components.