K'nex
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KNEX STEM Explorations Gears Building SetSC Rewards $15.99Regular $19.99Item # : 278-793189 In Stock
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KNEX Introduction to Structures BridgesSC Rewards $47.99Regular $59.99Item # : 278-786407 In Stock
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KNEX Introduction to Simple Machines Wheels Axles & InclinedSC Rewards $47.99Regular $59.99Item # : 278-786205 In Stock
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KNEX Introduction to Simple Machines GearsSC Rewards $47.99Regular $59.99Item # : 278-786305 In Stock
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KNEX Introduction to Simple Machines Levers & PulleysSC Rewards $47.99Regular $59.99Item # : 278-786104 In Stock
