Crazy Tube Set 73 PiecesThe Water System Play Set is a dynamic and educational tool that allows children to design their own water system while engaging in fun, hands on activities. This set includes a water pump, 7 connectable tube pieces, and 2 pop tubes, offering a total of 73 pieces for children to experiment with. They can scoop, pour, measure, and pump water while developing essential motor skills and learning concepts like measurement, counting, and experimentation.