Polarized Bifocal Reading Sunglasses Chic Sunshine Readers PGSG821 Magnification Strength:+1.50 25 inches(approx

25 inches(approx

Frame width about 57/16 inches (138mm)

Acrylic lens

which is for distance viewing

never contact with acid

Polarized Bifocal Reading Sunglasses Chic Sunshine Readers PGSG821 Magnification Strength:+1.50 25 inches(approxPolycarbonate Lens, plastic frame without spring hinges Frame width about 5 1 2 inches (140mm) Lens width about 2 1 4 inches (58mm) Lens height about 1 9 16 inches (40mm) Bridge (DBL) about 1 2 inches (12mm) Temple length about 4 15 16 inches (125mm) EYEKEEPER POLARIZED BIFOCAL SUNGLASSES Sunglasses and reading glasses, all in one. UV400 protective polarized readers and block 100% UVA UVB harmful rays for superior eye protection.