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These robots were created as a small demo of how easy it can be to get up and running. It's a Magician chassis with an Arduino Uno and L293D. We're probably the biggest consumer of Magician chassis - we've got about 30 at the moment and I'm just requested another 20. They're relatively inexpensive and easy for small hands to assemble, though we do find the motor wires have a habit it of breaking. I'm hoping to move to a 3D printed design in February. They were originally simply named "demo bots" ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/demonbot