driver stand stools....they fly real nice and far when you trip over one and f#@k your knee up...happened one night at the track....when i turned around after flinging it a couple of guys looked at me weird and avoided me like i was a crazed lunitic....6'4" 310lbs is a far distance and alot of weight to be falling on a knee....i think that driver is still looking for his step stool. i stepped on one once and collapsed it because it was in my way as well. they are nice if you are a little kid and need the height but if you are tall enough to see over the rail then be glad you can and quit trying to be tall...its gods way of telling you that you were put on this earth to smell farts.