This is a Durable plastic that is made for Resin Casting. Pieces pop out easily-May have a few water marks, but a thin coat of resin or resin spray will take care of that. This mold features 4 Ouija Board Planchettes with heart centers 2 1/2" 2" 1 1/2" 1" Do not put in oven. Molded From Love 2017