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.
Rubber Band Racers
149 kr
Fly into physics fun with five models driven by an awesome rubber band powered propeller.
| Regelspråk: | Engelska |
| Ålder (från): | 8 år |
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