Built me a new tool

I added those very tires to my engine stands... Just for temporary use, i slipped a couple lengths of 5/8 rod through the tube on on end, through the holes in the caster wheels on the other, drilled holes for cotter pins to keep tires in place. Is a lil wonky but when i moved, I almost died trying to get 2 big blocks across 20 yards of gravel...
Yea I changed my plan around a little instead of dropping the kframe I'm gonna use those wheels for my hoist and take it in from the top