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. We DO NOT recommend using EPOXY Resin that is used for Tumblers or tabletops for the Covid Keys. We Recommend using an Epoxy CASTING Resin such as Castin' Craft or Alumilite. see the tutorial video on how to unmold here- https://www.youtube.com/channel/UCYR3sKl7CwcMjCXMErQ-_rg/ This mold is a custom Design by Molded From Love All Rights Reserved 2020 COVID Key MOLD Covid Keys open doors without using your hands, use the ATM, Gas Station Buttons without having to touch. Keychain hole may need to be drilled after casting in order to insert a key ring. Molded from love 2020 This design is copyright protected. Can not be outsourced for mass production. For personal or small business use only. All rights reserved.