K'nex Education Intro to Simple Machines Levers & Pulleys Set Microsoft Surface Accessories Makes a great gift for

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K'nex Education Intro to Simple Machines Levers & Pulleys Set Microsoft Surface Accessories Makes a great gift forIncludes 178 colourful parts to make eight different replicas of real world simple machines Accommodates 2 3 students working as a team and appropriate for elementary classrooms in grades 3 through 5 STEM Concepts: making work easier, mechanical advantage, effort arm, fulcrum, lever classes, pulley systems and more Packaged in a reusable plastic storage tray with a snap on lid for quick clean up and easy storage Building with K'NEX puts children on a