Wooden Simple Machines Student Set #2
Product Number: SB40568
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Grades K-8. Each model measures 6 in.-8 in. and is excellent for small groups or individual study. Each model includes a detailed activity guide which details the history of the model, practical applications, and classroom experiments. Includes one each of Wheel and Axle, Gear Train, Pendulum, and Screw.WARNING: Choking Hazard. Small Parts. Not for children under 3 yrs.