BE AMAZING TOYS-Grow Snow Science Kit. Insta-Snow is an amazing powder that expands into a white, fluffy substance that looks like real snow. Just add water and watch it erupt! This kit contains one test tube 5x3/4 inch, Insta-Snow mix, plastic petrie dish, and instructions printed on the packaging. Recommended for ages 4 and up. WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 years. WARNING: This set contains chemicals that may be harmful if misused. Use only with adult supervision. Imported.