S2138   Price: $89.00  $29.95   Description:     1. Choose Frame 2. Select Lens Type 3. Customize Your Lenses   Choose Frame Color  Black             Available Colors:   Black   Frame Size  : 59-16-126 mm [lens size-bridge width-temple]   Total Width : 158 mm   Frame Height : 52 mm   (Measurement may vary +/- 1-2mm)   What do these numbers mean?

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