Tortoise Temples Bifocal Reading Glasses BR045 ms5r Polycarbonate lens

Polycarbonate lens

Bridge (DBL) about 7/8 inches (22mm)

Lens width about 21/16 inches (53mm)

Frame width about 5 7/16 inches (138mm)

frameless without spring hinges

Tortoise Temples Bifocal Reading Glasses BR045 ms5r Polycarbonate lensAcrylic lens, plastic frame with spring hinges Frame width about 5 1 2 inches (140mm) Lens width about 2 1 8 inches (54mm) Lens height about 1 1 2 inches (38mm) Bridge (DBL) about 9 16 inches (15mm) Temple length about 5 1 2 inches (140mm) EYEKEEPER BIFOCAL GLASSES A crescent shape on the bottom part of the lenses have magnification, which is for reading and close up work. And the other parts of the lenses have no magnification,which is for distance