Goshfun MOC Earth Moon Sun Small Particle Scientific Model Set Assembly Building Block Educational Stem Children Toy Kit for Home Decoration Ornament

Note: When assembling various gears make sure that all components can rotate freely. Dont push the gear too tightly on the axle or there will be a lot of friction between the gear and the Technic elevator arm on the side Parts are made of high quality ABS and made by high precision die. The surface is smooth and no burr. Each part fits well not easy to loose Manufactured by Goshfun. .In the process of building you can understand the knowledge of the universe exercise your hands-on ability and develop your space imagination ability Suitable for teaching demonstrations and a geat holiday gift for children Mimicking the movements of the Earth moon and sun. All components can rotate freely. Its reasonably accurate in terms of the rotation and orbital periods of the objects.