Two robotic arms swing away at one another with all manner of medieval weapons, such as maces, scythes and axes. It's too bad they don't actually hit one another, but it does look like each arm is tied to a panel that allows viewers to change what weapons are being used. The arms can then put the mace or axe it's using back on the rack, and retrieve the selected armament by way of a magnetic ring attached to each weapon.

from DVICE