This material is a chemical that has a molecular chain over 1 million molecules long. It's that super long chain of molecules that makes this a snot worthy polymer. Just add water and this powder will make a slimey goo that will amaze your friends. With a little help from you this polymer snot will pull itself up hill right out of a cup. Get ready to Goo! This 4.875x9x1 inch package contains 10g (0.35 oz) gravity goo powder, 5g (0.17 oz) clear spheres and instructions. Recommended for ages 6 and up. WARNING: Choking Hazard. Not suitable for children under 3 years. WARNING: This set contains chemicals that may be harmful if misused. Conforms to ASTM F693. Imported.