Gyroscopes are used in countless devices, and this kit teaches the physical scientific principles that keep 7 different models balanced, making them appear to defy gravity. Fun, hands-on experiments with the motorised gyroscope unit make these physical laws tangible and easier to comprehend. Build 7 different fascinating models with 102 building pieces. A full-colour, 24-page, illustrated experiment manual provides step-bystep assembly instructions and scientific explanations. Size H295, W370cm. Batteries required: 3 x AAA (not included) plus . For ages 3 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use. To be used under the direct supervision of an adult.