Inspire future engineers by exploring effort, force, load, motion, and distance with simple machines. Students use fine motor skills to construct and examine simple machines and develop a deeper understanding of how they work while flexing the mental muscles needed for STEM careers. Build 5 machines at once. 63 pieces. # Pieces In Set: 5 Learning Skill: Science Recommended Ages: 8 Years And Up Measurements: 4.3 Height/Inches, 8.6 Width/Inches, 14.5 Length/Inches Assembly: Assembled Base Material: 100% Plastic Country of Origin: Imported