The lenses block 30% blue color of online test for color filtering properties

Accord with ANSI Z80

block 55% within 470nm

Bridge (DBL) about 11/16 inches (18mm)

Bridge(DBL) about 11/16 inches (17mm)

4 Pack Double Color Frame Bifocal Sunglasses SBR2105 feed-color-Black/White/Red The lenses block 30% bluePlastic frame with spring hinges Frame width about 5 1 2 inches (140mm) Lens width about 1 3 4 inches (44mm) Lens height about 1 7 16 inches (37mm) Bridge (DBL) about 1 2 inches (12mm) Temple length about 5 5 16 inches (135mm) EYEKEEPER BIFOCAL SUNGLASSES 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.