Yako's oven pottery clay, a set of 8. I purchased these 2-3 years ago and have been storing them. They don't feel hardened, so I think they can be used as usual. There are 4 white and 4 brown, and the outer bag containing the 4 brown clays has been opened. The individual bags are unopened. [Contents] 400g Milk White x 4 For Craft x 4 Thank you.