armour

yup pritty much

I believe there was one in the First Series of Robot Wars.

It was Phycosprout. A Fibreglass ball with large 4x4 remote control car in the middle to drive it around. It went out in the second round in The Labyrinth, and as Clarkson said €œthe one that covers the least distance will be killed and eaten€, as a result they had buttered sprouts for dinner that evening. [I should not be able to remember that but hey...]

i was thinking more of a short cylinder shape tan a ball