Casters typically suck if you buy one of the Chinesium carts. Suggest swapping out for a decent set of brand name casters from Surplus Center in Nebraska or somewhere similar. Other than that harbor freight type one is fine as long as you measure your welder. Fabricating a real welding cart to meet your specific needs is usually one of the first projects for new welders
"hate little tiny casters they get stuck with the smallest things"
Me too... Steve
Oh, btw I bought one of the ones Arly posted for my little stick/tig - ended up spending hours "upgrading" the wimpy little wheels - it's STILL a wimpy little cart if you don't live on a pool table...
Ditto on the casters. Middle shelf is not big enough for a TIG cooler & (for me at least) leaves stuff too disorganized if used for MIG tips, tools, etc., so kind of worthless. Better approach might be drawers or a cabinet to keep stuff clean of grinder dust.