Activa CelluClay is made from recycled paper. It mixes easily with water and air dries quickly after molding. Sand, saw and decorate after drying, or continue to add wet pieces to build your sculpture further. CelluClay can be stored in an airtight bag or container and refrigerated for several days whne working on extended projects. Great for making masks, models, dioramas and figures. Can be painted or finished with acrylic paints and most other mediums. This 5 pound bag is great for use with groups or for larger projects.