we just use what we get for free :P lol so not sure what grade - i dont think its the best for robot combat

its all 8mm though and has been strong enough for KO and the axes - so far - we will get a nice hole from KO next event now iv said that lol

but wont be tested with spinners til rebel robots so might not be strong enough but hopefully is lol

the robot is slowly getting ti plates added to it lol got the back plate and will hopefully get the side plates one day soon