Smithsonian Magic Rock Set

Magic Rocks Instant Crystal Growing Kit.  Create a Brilliant Underwater Garden.  Rocks grow to Different Heights up to 4". Includes 1 Space Background Print, 1 Sticker Sheet, 1 Tank and Detailed Instructions. Adult Supervision Required. Conforms to ASTM D-4236.  Ages 10 Years and Up. Set contains Chemicals that may be harmful if mis-used.  Read Cautions on Individual Containers Carefully. Missing or Defective Parts: 631-501-7550 or custserv@nsi-int.com. Warning, Choking Hazard, Small Parts, Not for children under 3 Years