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Thames & Kosmos Rubber Band Racers$35.22
Physics fun with five rubber band powered models.using ultralight plastic and bamboo parts, build a helicopter, fan boat, airplane, car, and catamaran. Learn how the elastic material stores energy and then releases it to move the models. Using ultralight plastic and bamboo parts ...Physics fun with five rubber band powered models.using ultralight plastic and bamboo parts, build a helicopter, fan boat, airplane, car, and catamaran.
Learn how the elastic material stores energy and then releases it to move the models. Using ultralight plastic and bamboo parts, build a helicopter, fan boat, airplane, car, and catamaran. Learn how the elastic material stores energy and then releases it to move the models.