Stepping Stone Molds for concrete We have the largest selection and best quality molds in the USA. Our 3/16" ABS Plastic Concrete Molds are good for between 800-1200 pours. They are a stand alone mold and need no exterior If you do not see what your looking for simply email us or call us. Chances are we have it. Stepping Stone Molds for Concrete - Garden Ponds Please note: You are currently browsing img decorative floral flower stepping stone concrete plaster that is 1000x750px in size. This image is listed in garden stepping stones decorative concrete category. Stepping Stone Molds for Concrete Garden Ponds, 1000x750 in 66.39 KB.