A battle box is a case or a box made of polycarbonate that surrounds the Antweight Arena. For Antweights it must be at least 1mm thick, ideally 3mm thick or more.
The purpose of a Battle Box is to stop debris created when parts fly off the robots going into the audience or the roboteers and potentially harming them.
It is designed to keep the human operators and the spectators safe. The Battle Boxes surrounding arenas that are designed to take spinners are significantly thicker than the ones surrounding non-spinner arenas due to the large amounts of high energy flying debris that spinners tend to create when they fight.