Things less than 350lbs, I put wheels on one end, wheel barrow handles on the other. When the one, or two stiff legs are on the floor it does not move.. much..
A couple of things I put screw down wheels on. A lot of my "stuff" is on 2x2 square tubing posts , and I have sockets on each piece of equipment to drop them in to use. THE neatest rig I have saw dropped into floor sockets, I didn't plan that well ahead. I have a big Ibeam in the ceiling, a trolley and hoist, everything really heavy has a lifting hook in "center" to pick it up. (except the milling machine, lathe, and big presses)
Here, that thing you posted is called a pallet Jack, dolly.. the one I got I have a vortech engine and transmission on currently. It moves things easily but does not fold. I gave $50 american for mine, had to add oil, pull the rubber plug, add, put plug back in. Each time you use it, the casters are so small you must sweep the floor like you are going to do surgery in the room cause a tiny gravel will cause problems. THE jack seal rebuild kit for the dolly I have is $300.. no clue what they cost new for a name brand like mine. I'll continue to add the oil as needed.
And each time I walk around that vortech engine I rip my clothes with the hoses-lines-tubing-brackets sticking out that are sharp.. the best place to store that dolly is under that engine. I gave away a half dozen "hot rod" engines because of space and that same reason.