Donegan FlipUp ClipOn Magnifies 21/2 X

Product Features Binocular magnifier can be used with included frame, or clipped onto prescription eyeglasses to provide hands-free magnification and viewing for a variety of applications, such as jewelry-making, watch-making, needlework, artwork, fly-tying, electronic inspection, book-reading, print inspection, and stamp-collecting Available in multiple dioptric strengths that provide a specific magnification power (X), depending on the distance from the object (focal length) A dioptric number and a magnification number are not the same thing. Diopter strength represents a specific magnification power (X). For example, a 5-diopter provides 2.5X magnification (at a distance of 8") Dual acrylic lens system has optical-grade lenses ground and polished into prismatic lenses for quality, clarity, and durability Can be used with included frames, or clipped onto prescription eyeglasses