ncludes all pieces required to build 3 different model toys, water tubes, a hand pump, a work platform and instruction/information booklets;Kids can create a water-powered model crane, cherry picker and grabber and learn about the science of hydraulics;After assembling the model hydraulics machines, use the hand pump to move water through the tubes and control the functions;Easy-to-follow instructions booklet has detailed illustrations of each step;Package Dimensions: 12 x 10.5 x 2.25 inches

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