K'NEX Star Shooter Coaster Building Set Motorized for exciting performance|For ages 7+|Requires 2 "AA" batteries, not included Motorized for exciting performance|For ages 7+|Requires 2 "AA" batteries, not included Motorized for exciting performance|For ages 7+|Requires 2 "AA" batteries, not included Build your own amusement park ride Includes 434 parts Motorized for exciting performance Requires 2 AA batteries, not included Recommended for builders 7+