Modelling material. A new way to create your favorite castings from moulds or create free-form shapes! This Air Dry-Material is pliable and easy to use, simple take it out of the container, press it gently into your favourite Decor Mould and release it. Allow it to air-dry. For best results we suggest laying a damp paper towel over the casting to allow it to stay moist during the drying process. This will help minimize shrinking and any cracking from occurring. Most Air Dry Materials have shrinkage and this is normal of Air-Dry Modelling Materials. This Air-Dry Modelling Material is also non-toxic.