MAKE YOUR OWN BOUNCY BALLS – Unique Arts and Crafts Set Comes with All the Supplies Needed for Kids to Create Their Very Own Mini Magic Power Balls 12 Bags of Powder Crystals - Bright, Colorful Supplies Include Every Neon Shade of the Rainbow for Artistic Expression and Fun, Imaginative Experimentation JUST POUR, DIP AND BOUNCE – Simple 3-Step Science Experiment Provides a Fast, Clean, Easy and Educational Activity for Boys and Girls PERFECT PARTY FAVORS – Safe, Non Toxic Toys Make Great Inside and Outside Group Projects for Rainy Day, Birthday, Play Date, School Science Project and More Contents Included: 4 Reusable Plastic Ball Moulds 12 Packets of Magic Ball Powder Crystals(10gm*12) 4 Storage Cups with Lids Detailed Instructions