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Make telling the time clear
time with friends and on the farm
Frames connect to each other
and the milkman both have wretched jobs: working in the cold
Polydron Original Stem Engineer Class Set Age 4-12 Make telling the time clearDemonstrates engineering principles and the workings of simple machines 250 pieces with various components as shown in the key. Includes excellent workcards. Build the following 14 models: Cable Car, Gear Toy 1, Gear Toy 2, Chairspinner, Chairoplane, Big Gear Toy 1, Big Gear Toy 2, Four Cylinder Engine, Gearbox, Crane, Gyro, V8 Engine, Clock, Vertigo. 3 to 4 models can be made at a time. These excellent sets contain the latest innovations including
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