NEW William Morris WMBLBOND Brown Tortoise Plastic 47-21-145 Eyeglasses Frames. These are new with tags eyeglass frames that can be used for prescription (Rx) lenses.
The measurement 47-21-145 is a millimeter measurement of size
47mm is the width of the lens
21mm is the width of the nose bridge
145 mm is the length from hinge to temple