Hateyes® magnifiers’ stainless steel construction with high-grade optical quality acrylic binocular lens! Hateyes® lens flips up under brim when not in use. Four magnification lenses to choose from: 1.6x, 2.0x, 2.25x or 2.75x. Release grip pressure to change lens
magnification. Adjustable pivot tension. Slide action rearward will allow it’s use on long brim hats (3+ inches). Great for caps, hats, sun visors, etc.