Contained: Test tube packaging provides the site for the experiment to take place and storage for the final product. "Sneaky science: Part of the award-winning Ooze Labs science series which introduces scientific concepts in a fun engaging and playful way. Manufacturered by Thames & Kosmos. Party favors & stocking stuffers: Each Ooze Labs tube measures under 6 inches tall making it the perfect size and an affordable choice for use as a party favor stocking stuffer or Easter basket goodie! Safety first: includes safe non-toxic materials and an instruction manual that guides experimentation. Fun and simple science experiment: Includes the ingredients to explore the bizarre properties of hydrophobic (water-hating) sand!