Polycarbonate lens, metal frame with spring hinges
Block 40% blue light, almost no color distortion
Frame width about 5 1/4 inches (133mm)
Lens width about 2 1/16 inches (52mm)
Lens height about 1 11/16 inches (43mm)
Bridge (DBL) about 1/2 inches (13mm)
Temple length about 5 3/8 inches (137mm)
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 viewing.
