This product does exactly what is says on the tin (or in this case, the box). It is a good home modelling/sculpting product, and therefore ideal for arts and crafts projects (even with the kids provided there is proper adult supervision) because it can be hardened in the home oven without the need for a kiln.
However.... One thing that this product doesn't say on the box, is that it is not food safe. Even after baking/hardening, this product is still unsafe to be used for making items to hold, store or contain food or drink of any description.
I feel this is an important point to make because many people buying this product may have the idea of using it like normal clay without the faff of needing a kiln, to make pots, jars, cups, jugs, bowls etc etc. IT IS NOT SAFE for these types of projects, so please be aware of this.