ColorViper Clip On Flip Up & Down Reader Magnifiers, Converts Distance Glasses and Sunglasses into Reading and Computer Glasses Composite frame plastic lens see detail Lens width: ONE SIZE 68mm-23mm-, 5.00" Wide x 2.1" Height Temporarily convert distance glasses or sunglasses into reading glasses Spring clip attaches magnifying lenses to top of distance glasses lenses Great for all close work where quick magnification is needed-reading, fishing, hobbies, crafts, computer use, etc. 1.01 Oz