The mold is a little dirty, I leave the cleaning to the next owner...
I have little recent experience with this item, and don't want to damage the mold; I cannot accept returns because this mold doesn't belong to me. I am selling this mold and others for a friend, along with some related items, and so you may want to check back.
Feel free to send me any questions, and thanks for considering this Thingmaker mold!