K'NEX Education Simple Machines
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Jeff
2025-05-27iphone 8
Amazon.com: K'NEX Education - Intro to knex levers and pulleys
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Moses
2025-05-24iphone 11 Pro Max
K'NEX Block and Tackle (Levers and knex levers and pulleys
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Kenh
2025-05-26iphone 11
Simple Machines Levers And Pulleys Set knex levers and pulleys