On each product page you will see something similar to below under 'size.'

47|24 145

47 - Width of the lens

24 - Bridge diameter (the distance between both lenses)

145 - The length of the temples. 145 is industry standard. On our 12mm Pewpols Signature frames, we reduce this to 140mm to counter balance the thickness of the end-pieces.

Hinge to hinge: 135mm (The distance between the hinge screw on the left and the hinge screw on the right.)

Total Diameter: 140mm (The distance across the front face of the frame from end to end.)

What do each of these numbers mean?

End Pieces - The two acetate ends on either side, left and right of your frame.

Rivets/Pins - The diamond hardware on our frames.

Wire Core - The metal plate inside the temples used to secure the hinges and strengthen the temples for adjusting.

Temples - The arms on your frame.

Frame - Refers to the glasses themselves.