ALEX TOYS- Kid Concoctions Collection: Grow a Crystal Dino. Everything you need to create a crystal Dinosaur! Watch the crystals grow in a few magical minutes. This package contains one paper dinosaur; two paper trees; crystal liquid (.7 fl ox); two trays and easy instructions. Conforms to ASTM F963 and D4236. Recommended for ages 6 and up. WARNING: CHOKING HAZARD- Small parts may be formed. Not for children under 3 years. Imported.