Non polarized UV400 amber copper driving lens rectangle shape flip up that clips onto rectangle shape prescription glasses. Measure your glasses width x height. It is best to add about 2mm's to the height of the flip up height to accommodate for how the flip up clamps onto your glasses. It is usually okay for the flip up lens to be a little wider or higher than your glasses, it will just overlap a little.
One Lens 56mm Width x 40mm Height Total Width 125mm
One Lens 58mm Width x 42mm Height Total Width 130mm
One Lens 60mm Width x 44mm Height Total Width 135mm