K’NEX Education - Intro to Simple Machines - Levers and Pulleys Set

New K’NEX Levers and Pulleys Set. 178 Pieces for kids in grades 3-5. K’NEX pieces are unopened and in the original sealed bags. Includes building instructions and a complete reprinted teacher’s guide that includes lesson plans and experiments. You can build 8 fully functioning replicas if real-world machines.