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. Designed From Start To finish By Danette Mullen This amazing pallet features 2-2" wide retro space ships and 1-2" wide alien head with headphones Do not put in oven. Molded From Love 2016