Use two powerful eye loupe magnifiers at the same time - hands-free! Each flips-up when not in use * Durable steel eyeglass frame with 20X loupe for each eye, one or both flip up when not in use * Optical-quality polycarbonate doublet lenses increase viewed objects to 2000% original size * Individually-aimed 15,000mcd super-bright LED put brilliant light right where you need it * Light for up to 40 hours on included button-cell batteries; easy to wear - weighs just 3 oz