K'NEX Typhoon Frenzy Roller Coaster Building Set Includes 649 pieces|Motorized chain lift|19 feet of track|Silver coaster car| Requires 2 "AA" batteries, batteries not included| Recommended for ages 9+ Build a coaster 2.7 feet tall! 19 feet of track propelled by a motorized chain lift Recommended for builders ages 9+ Requires 2 "AA" batteries, not included