This listing includes three pairs of mother/daughter buttons. A pierced plastic pinwheel, probably casein. The large one is 1 3/4 inch, the smaller one is 1 1/8 inch. A stamped open work silvered brass with interesting texture and style. The larger one is 1 1/4 inch, the smaller one is 1 inch. And a pair of glass set in metal, although I wouldn’t be surprised if the black is actually a painted metal. The larger one is 1 1/8 inch, the smaller one is 7/8 inch.