Styled after a traditional pair of American factory safety glasses. Hand polished acetate frame. UV400 scratch resistant 1.5 polycarbonate lenses. UVA and UVB Protection. RX optical quality frames. Measures 5 inches from front inner hinge to inner hinge. Measures 5.5 inches from the widest points at the front of the frame. Measures just over 5.75 inches in temple (arm) length.