block 49% within 480nm

preventing any looseness

Temple length:13

tr90 frame with spring hinges

comfortable to wear

4 Pack Stylish Round Bifocal Reading Sunglasses S005 Kids block 49% within 480nmAcrylic lens, plastic frame with spring hinges Frame width about 5 5 16 inches (135mm) Lens width about 1 7 8 inches (48mm) Lens height about 1 11 16 inches (43mm) Bridge (DBL) about 9 16 inches (15mm) Temple length about 5 1 2 inches (140mm) 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