2 pack STEM construction set that moves and works
More than 60 interchangeable pieces in each set
Motorized gear makes units move and work
Interlocking plates, gears, and 3-D connectors
Detailed step by step instruction guide
Requires 2 AA batteries (not included)
Aligns with STEM: Science, Technology, Engineering, and Math standards
Perfect way to encourage children's mechanical and engineering skills
Builds confidence as children design structures that move and work
Safety tested to meet all domestic and international toy safety regulations