The outer diameters of the magnets must fit within {TAIL ~ the selected eyeglass rim diameters} and range typically from about 1.15 inch to {HEAD ~ about 2.0 inch} 
The outer diameters of the magnets must fit within { TAIL ~ the selected eyeglass rim diameters } and range typically from about 1.15 inch to { HEAD ~ about 2.0 inch }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD