his 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 is a 4 cavity mold featuring 4 different Heart shapes Designed By Danette Mullen Each Heart is approx. 2" Heart with cross Heart with Bite taken Dripping Heart Heart with Horns Do not put in oven. Molded From Love 2016