Stole this idea. Should have made this a long time ago. No tools needed. Just use the pins from the deck wheels +2 additional pins. Only thing I may still do is tack the u bolts to the rod so they won’t rotate. You can only tighten them so tight and the casters plate wants to bend. One caster wants to rotate. Other than that, works great. Had the casters and stainless 1” pipe. Got 10’ of 1” rod for $20 and about $20 for the u-bolts.