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. A custom Design By Danette Mullen These RETRO Trailers measure approx. 2 1/2" wide 2" and 1" Left and Rights Do not put in oven. Pieces made using this mold can NOT be used to remake into molds for resale. Molded From Love 2017 All Rights Reserved.