Kosmos/ Crystal Growing Experiment Kit. For ages 8+ Watch how beautiful crystals grow from the white Crystal salt, some water and dye! In addition, you will learn what crystals actually are and how their various forms come about. Not suitable for children under 8 years. For use under adult supervision, Contains a  chemical which presents a hazard to health. Read the instructions before use, follow them and use them for reference. Do not allow the chemical to come in to contact with any part of thr body, particularly the mouth and eyes. Keep away from small children and animals.