Watch Your Young Mechanic Build This Techno Gears Mud Runner That Has Power, Attitude, Excitement, And Action! With 60 Plus Colorful Construction Pieces, Oversized Tires, And Power Motor. This Kit Includes Everything Your Monster Truck Enthusiast Needs To Build Their Own Moving And Working Mud Runner Truck. The Mechanics Of These Techno Gear Sets Include Gears And Will Introduce And Allow Kids To Experience The Science Of Gear Ratio. Provides Hours Of Interactive Learning Fun. These Products Align With And Support Stem (Science, Technology, Engineering And Math Standards). Requires Two Aa Batteries (Not Included) For Ages 6-12 Years. Compatible With All Techno Gears Sets.