These black acetate round-framed sunglasses have grey-tinted lenses and metal-hinged black acetate circular lens covers which open individually to the top of the frame. The sunglasses have slim black-acetate arms. Acetate. Size and fit: Width of frame 5.5in/14.5cm. Max width of frame 8.5in/22cm. Width of lens 1.6in/4.5cm. Height of lens 1.6in/4.5cm.