Adorable dinos “play” in a prehistoric scene that kids grow themselves—a wonderful way to explore science and learn about chemical reactions! Our kid-friendly set comes with everything kids need to create an exciting world of crystals that fully bloom in 48 hours—3 dinosaurs, 3 plant forms, 3 packets of crystal-growing solution and a sturdy, 5 1/2" x 9 1/2" plastic base.