4 Pack Square Progressive Multifocus Readers M2104 Magnification Strength:+1.50 Frame width about 5 1/2

Frame width about 5 1/2 inches(140mm)

no hinges at the edge of the lenses

Frame width about 5 3/8 inches (136mm)

metal frame with spring hinges

BLOCKING OVER 30% BLUE LIGHT - Blue light blocking technology naturally blocks out the recommended 30% of blue light rays: do not settle

4 Pack Square Progressive Multifocus Readers M2104 Magnification Strength:+1.50 Frame width about 5 1/2Acrylic lens, plastic frame with spring hinges Frame width about 5 3 8 inches (136mm) Lens width about 1 7 8 inches (48mm) Lens height about 1 9 16 inches (39mm) Bridge(DBL) about 3 8 inches (10mm) Temple length about 5 1 2 inches (140mm) EYEKEEPER ONLINE PROGRESSIVE MULTIFOCUS GLASSES 5 layer anti reflective coating to minimize glare from screens and fluorescent lighting. Not only for looking far, but also for computer and looking close. (up degree