• K39Nex Exploring Wheels, Axles And Inclined Planes

    Special classroom pack of 4 subsets designed for multiple use up to 12 students at any one time. Each set builds seven real world examples of how a wheel turnsan axle, how an axle turns a wheel, plus two levelsof inclined planes and a screw and wedge.Up to 12 studentsBuilds 28 models 850 pieces. Age…