Calabria 4375T Tinted Reading Sunglasses w/ Matching Case plastic frame plastic lens non-polarized Lens width: 50 millimeters Frame dimensions: 5.25 wide by 1.5 high Calabria Eyewears Model 4375T is a stylish unisex reading sunglass featuring a rich tortoise pattern and a larger lens shape. The tinted full lenses provide 100% Ultraviolet Protection. Expertly crafted lightweight polycarbonate frame with spring loaded temple hinges for the ultimate in comfort and durability The optically correct, distortion free aspheric lenses provide outstanding clarity. These wonderful Sun Readers features a matching protective case, that doubles as a cleaning cloth.