Can metallivores eat them, as they can eat the spikes out of pit traps? If rock moles can't pass through them, the only way for a metallivore to end up on them would be to polymorph into a creature that can pass through, and then into a metallivore (highly improbable for anything but a player with polymorph control). -Ion frigate 08:16, February 20, 2010 (UTC)