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curly tails
Allows students to compare and contrast the power and efficiency that can be realized from wind
Primary schools Y5/Y6
Suspension and Cable-stayed bridges
Rowing boat
K'NEX Rotokontrol 10-in-1 building set Classic K'NEX parts curly tailsTake your K'NEX builds to the next level with the RotoKontrol 10 in 1 building Set. Use the included K'NEX parts and pieces to build 10 different models including a pirate ship, robot, various wheeled vehicles, and a Quad Copter that actually FLYS! The high speed, precise multi rotor hub has Beginner and Expert modes, to challenge each builder as they enhance their RC skills. And, because crash landings happen, like all K'NEX products, you can easily