Size Guide: 50 □ 17 - 150

Lens Width (A): 50mm

Lens Height (B): 36mm

Bridge (C): 17mm

Frame Front (D): 145mm

Temple Length: 150mm

To identify the right glasses size, you can use a ruler to measure the total width of your current frame. The suitable width of the frame should be +/-4mm from the size of your current glasses.