R3203   Price: $200.00  $79.95   Description:     1. Choose Frame 2. Select Lens Type 3. Customize Your Lenses   Choose Frame Color  Red             Available Colors:   Red   Frame Size  : 50-17-135 mm [lens size-bridge width-temple]   Total Width : 127 mm   Frame Height : 29 mm   (Measurement may vary +/- 1-2mm)   What do these numbers mean?

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