This is a great educational and fun toy. It's a remote control robot, dubbed Tornader, that does what you might expect: spins, rolls, while still being able to upright itself. Create then creatively destroy stuff in your room using up to four Tornaders that are controlled from a single remote.
Specifications: 4-channel remote, power: AA x 6, dimensions: 4.8 x 4 x 4 in. (121 x 103 x 103mm), weight: 0.46 lb (210g), manual: Japanese only and self-assembly required (takes about 1 hour). Consider working with the Japanese manual extra-educational.
Note: this product ships direct from Japan and is intended for the Japanese market. Instruction manuals are in Japanese. However, operation is simple and straightforward and we are available to answer any questions.