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

titanium and metal frame with spring hinges

EYEKEEPER ONLINE PROGRESSIVE MULTIFOCUS GLASSES - 5-layer anti-reflective coating to minimize glare from screens and fluorescent lighting

Lens height about 11/2 inches (38mm)

all in one

Thicker Frame Transition Photochromic Reading Glasses BS9107 Magnification Strength:+3.00 Bridge(DBL) about 11/16 inches (18mm)Acrylic lens, plastic frame with spring hinges Frame width about 5 3 8 inches (137mm) Lens width about 1 15 16 inches (50mm) Lens height about 1 7 16 inches (37mm) Bridge(DBL) about 1 2 inches (13mm) Temple length about 5 11 16 inches (145mm) PHOTOCHROMIC LENSES Transparent lenses in the door, it will be change to grey color in the sunshine within 10 minutes.