Purchase Qty. Reference FOB Price
1-499 pair US$10.00
500+ pair US$0.10
Product Description
Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses ---Weight: Polycarbonate lenses are lighter than glass lens, so polycarbonate is more comfortable to wear for long periods of time ...