Johnco - Springer - Spiral Spring Science Kit
Explore the secret of clockwork mechanisms. Discover spring power! Have you ever wondered about the power source of a wind-up car or where the ticking sound of a clock comes from? The secret lies in the mainspring. Centred on the clockwork is a spiral
Price: $47.95
Category : Kids & Family, Toys & Games, Learning Toys, Basic & Life Skills Toys, Johnco Toys, Science Toys
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