This is a handmade flexible plastic resin mold that can be used with clay, soap, chocolates ect.. Pieces should pop out easily and be shiny. This mold features 6 custom made Skull shapes each one approx. 1.5" There may be small/slight 3-D print lines If pieces come out not shiny, simply coat with resin or resin spray. That is what I do with all of my pieces anyway. Do not put in the oven.