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Nose Gap: 24mm
CR-39 has the highest Abbe value of any lens
- Frame Color: Black- Lens Color: Dark grey- 1 Year Warranty
the better
"CR-39" is an abbreviation of Columbia Resin 39
Dash Cherry ROUND Nose Gap: 24mmDash Cherry Square shape. Frame Color: Black Lens Color: Cherry 1 Year Warranty Technical Information: Hand PolishedWidth Nose Gap Height Measurements of this pair: 145 24 47 mm Lenses: Flat base 0Hinge: Five barrel Front thickness: 6. 0 mm Temples thickness: 4. 0 mm Lenses Technology: CR 39 Lenses. CR 39 is made by polymerization of diethyleneglycol bis allylcarbonate (ADC) in presence of diisopropyl peroxydicarbonate (IPP) initiator."CR 39" is an