computer glasses with crystals for women reading blue light filter eyeglasses(black) without strength cessblu <b>features</b><br>frame material: plastic<br>lens width: 1 15/16"(50mm)<br>frame width: 5 3/16"(131mm)<br>lens height: 1"(26mm)<br>frame height: 1 3/16"(30mm)<br>bridge (dbl): 1/2"(12mm)<br>temple length: 5 1/8"(130mm)<br>spring hinge: yes<br>lenses: aspheric<br>head size: narrow to medium<br><br><br><b>care</b><br>to avoid damage, never clean your eyeglasses with paper towels or clothing or alcohol, and also avoid using household detergents or soaps. while a few mild soaps don't harm lenses, today's extra strength soaps are powerful enough to slowly disintegrate lens coatings.<br><br><br><b>kindly notice</b><br>please ensure that the frame size is fit for your head before your pay.