Plastic Black Cauldron is about 3" tall and wide. It is hollow and can be used to put sand in and dumped.
The definition of a cauldron is a very large iron pot that is used for boiling or cooking, or a situation where there are a lot of strong and usually angry emotions. A caldron on a campfire. noun. In stories and fairy tales, a cauldron is used by witches for their spells . If you describe a situation as a cauldron, you mean that it is unstable or dangerous .