Never be without extra vision power! Hat Eyes magnifier is lightweight, constructed of stainless steel with high grade optical quality acrylic binocular lens. Attach to cap brim flips up when not in use. Includes extra long link for bifocals. Great for gunsmiths, artists, crafting, etc. Changeable lens – available in 2.25X or 2.75X. Specify when ordering. Made in the USA.