Different every time you build, this versatile, interconnecting gear set fosters imagination and provides opportunities to experiment with simple mechanics and science\nSupports STEM by introducing children to sorting, grouping, counting, designing, constructing, and putting physics into play with spinning gear movement. Learning gets more intricate as children’s abilities advance\nBoost fine motor skills while promoting reasoning and problem solving as children create moving experiments with spinning, colorful action\n100-piece set includes 46 Colorful gears (blue, green, orange, red, purple), 26 square pillars, 21 six-way axles, 6 interlocking bases, 1 crank handle, and activity guide\nSuitable for Ages 3+