GROW CRYSTAL COVERED TREES – Watch in wonder as crystals grow from the branches of the included evergreen and cherry trees like magic; you’ll see the first crystals in minutes and trees will be fully covered in as little as 6 hours making a fantastic crystal display Player Information Age of Players: 8 to 99 YearsNumber of Players: 1 to 99Skill Level: IntermediateTime to Learn in Mins: 5Time to Play in Mins: 300 Small Piece Choking Hazard: No Battery Details:Batteries Included: Not RequiredBattery Details: 0 NAAdditional Batteries: 0 NAAdditional Information:Publisher: National Geographic Blue Marble Item ID: 816448020070 Packaging Dimensions: 10" X 7.25" x 2.4" Language: Bilingual (English/French) Country of Origin: CN