won't break easily

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

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

Bridge (DBL) about 15/16 inches (24mm)

4 Pack Fashion Cat-eye Bifocal Reading Glasses BR2138 Magnification Strength:+2.50 won't break easilyAcrylic lens, plastic frame with spring hinges Frame width about 5 13 16 inches (147mm) Lens width about 2 1 16 inches (52mm) Lens height about 1 3 8 inches (35mm) Bridge (DBL) about 9 16 inches (14mm) 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