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Wooden Simple Machines Complete Student Set
Product Number: SB40569
Each model includes a detailed activity guide which details the history of the model, practical applications, and classroom experiments. Includes one each of Lever, Wheel and Axle, Gear Train, Pendulum, Pulley, Inclined Plane, Block and Tackle, and Screw. Each model measures 6 in.-8 in. and is excellent for small groups or individual study.WARNING: Choking Hazard. Small Parts. Not for children under 3 yrs.