You get one pound of natural play sand, 6 sand molds and a convenient play tray. What\'s more, it won\'t dry out, meaning there\'s no end to the amount of imaginative fun you can have.Hydrophobic sand comes in the kit too, and it\'s an incredible sand to conduct experiments with since it never gets wet! The snotty slime and liquid slime come pre-made, so are ready to play right out of the box. The textural differences between the two are astounding! You\'ll also receive color-changing putty, which is specially formulated to change colors when warmed or cooled.The easy-to-follow instructions also include several slime recipes you can make at home with common household items. The Sensory Science Kit is great for families that like to play together, and the detailed learning guide provides insight into the science at work in the kit. Contains: National Geographic Explorer Science Sensory Kit Age: 3+ Batteries: N/A