ROLF EYEWEAR PRUT BLACK AND BLUE SQUARE OPHTHALMIC GLASSESROLF EYEWEAR Substance is made from the purely vegetable material of the castor bean, convinces with its fantastic wearing comfort, robustness and lightness at the same time. The patented Flexlock joint makes the frame flexible and at the same time very durable. Colour: Black and Blue 20F01 Frame Shape: Square Size 54mm Bridge Width 16mm Arm Length 135mm Free Shipping Standard manufacturer lenses Case and cloth included