The Hey Clay Dinos modeling clay set contains six cans of colorful, air-drying clay for modeling prehistoric creatures. The smooth clay does not stick to hands and is easy to work with. The set allows you to shape a Pterodactyl, Tyrannosaurus, and Triceratops. After about 20 minutes, the modeling clay begins to harden in the air, turning the finished creations into solid action figures. The accompanying interactive app provides animated step-by-step instructions that digitally guide the creation of the dinosaurs.