Put your Sphero BOLT or SPRK+ in the driver's seat in the driver's seat with the Sphero Chariot. Let it carry cargo, turn it into the ultimate spy-bot by adding a phone to the custom carrier, snap on toy building bricks to design your own creation, or just battle friends in an all out chariot. NOTE: The chariot is ideal for round robots like BOLT and SPRK+, but not Sphero Mini. Put your Sphero BOLT or SPRK+ in the driver's seat in the driver's seat with the Sphero Chariot. Let it carry cargo, turn it into the ultimate spy-bot by adding a phone to the custom carrier, snap on toy building bricks to design your own creation, or just battle friends in an all out chariot. NOTE: The chariot is ideal for round robots like BOLT and SPRK+, but not Sphero Mini.