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 is a custom designed BONG Soap or Bath Bomb Mold just a hair over 3.5 tall by 3" wide at the bottom and 1 3/8" Deep Molded from love 2021