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Semi Finished Bifocal
        Polycarbonate & Trilogy
POLY Flat-Top 28 Clear
Base Range: 2, 4, 6, 8
Add Range: 0.75 to 3.00

POLY Flat- Top 28 Nu-Polar
Base Range: 4, 6 8
Add Range: 1.00 to 3.00

POLY Flat-Top 35 
Base Range: 4, 6, 8
Add Range: 1.00 to 3.00

POLY Trifocal 7/28 
Base Range: 4, 6, 8
Add Range: 1.50 to 3.50

POLY Trifocal 8/35 
Base Range: 2, 4, 6, 8
Add Range: 1.50 to 3.00

TRILOGY Flat-Top 28 Clear
Base Range: 4, 6, 8
Add Range: 1.50 to 3.00

TRILOGY Flat-Top 28 Transition
Base Range: 4, 6, 8
Add Range: 1.50 to 3.00