Smooth Dog bone concrete or plaster stepping stone mold. This dog bone mold will make a finished stone that will measure approximately 10 1/4 inches by 6 inches and is 1 1/2 inches thick. All of our molds can be used with concrete, cement, plaster, soap and resin. Comes with basic instructions for creating your pieces. Our molds are made of several different blends of polyethylene plastic which allows you to use the molds over and over. Our plastic is somewhat flexible so it allows for your finished pieces to be removed from the molds easily. This is a mold to pour into to make your own stones.