B709

Standard assembly restrictions: Sphere max. power +8/-8. Max. cylinder compared with sphere: +/-6. Corrected base: 4 Lens material : Toughened Glass - CR39 (Plastic) - Polycarbonate
Two eye sizes available:
B709 Small:  51x20 -140   Standard temple, riveted sideshield
B709 Large:  53x20 -140   Standard temple, riveted sideshield