[EYEKEPPER CLIP-ON POLARIZED LENS SYSTEM] - The clip-on design quickly converts compatible readers into sunglasses whenever needed

Frame width about 5 3/8 inches (137mm)

Bridge (DBL) about 1/2 inches (13mm)

Hypoallergenic Option: The absence of metal screw not only eliminates the risk of screw loosening or coming out but also minimize the potential for allergic reactions or skin irritation

Half-rim Blue Light Filter Titanium Metal Eyeglasses 003B feed-color-Brown/Black/Grey [EYEKEPPER CLIP-ON POLARIZED LENS SYSTEM]Acrylic lens, metal frame with spring hinges Block 40% blue light, almost no color distortion Frame width about 5 1 2 inches (139mm) Lens width about 2 1 8 inches(54mm) Lens height about 1 5 16 inches(33mm) Bridge (DBL) about 11 16 inches(17mm) Temple length about 5 5 16 inches(135mm)