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