Adorable sea creatures “play” in a vibrant ocean 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 underwater world of crystals that fully bloom in 48 hours—3 sea animals, 3 coral forms, 3 packets of crystal-growing solution and a sturdy, 5 1/2" x 9 1/2" plastic base.