This is a polarized UV400 rectangle shape flip up that clips onto rectangle shape prescription glasses. We have several different manufacturers for the rectangle flip-up's. Each size has a slightly different rectangle shape that is shown in the picture when the size is selected.
One Lens 56mm Width x 40mm Height
Total Width 128mm x 40mm Height
One Lens 58mm Width x 42mm Height
Total Width 130mm x 42mm Height
One Lens 60mm Width x 44mm Height
Total Width 135mm x 44mm Height