The $39 for a pair answers that question.
Notice the support bars underneath?
BlowOut Sale! Yea because they got stuck with container load of them.

Damn Philly... you’ve been ON THE RAG for quite some time !

I talked to a bud up in Michigan yesterday and those skates work QUITE WELL I’ll have you know.

He reports that his 110 lb wifey - ALONE - pushes a 71 Charger around with ease !

So she tells the truth about her weight and age?

I admit my car is a basic shell, has a 440/AT/Dana in it but no fenders, glass, or interior. I haven't noticed if the wheels on mine are flat or rounded, they're years old though.

I haven't greased the wheels, just make sure they're pointing the right direction, find a good solid place to push, and kind of rock it (push,push,push) until it starts moving. This is just to move the inop car around in a 2 bay garage. Maybe the expensive easy rollers would be worth it if I was pushing the car from one end of a huge shop to another, but I'm not.

Had them under my Cuda. Worked fine. Then I put the engine and transmission in and not so much. the front ones bent so much they were almost scraping the floor

Aside from the silly stuff...I worked in a shop for a while that had some of these cheap dollies. Unless the car was a shell, they were trash. Bent up, wheels folded over. I don't know how many times I threw them out in the lot and just grabbed a floorjack. Someone would always drag them back in and try to use them. Trash.

I've also used the better ones with the hydraulic lift and pedal. They were were marginally better.

Right now, I have no interest in anything made in China. Even less than before. Nothing made there I can't do without. I'd like to see them cut off, but I know it wont happen.

Got the grease injector - did a-couple of casters and it’s LOTS better... just spinning them by hand.

All I plan on putting on the skates is a Chrysler 200 and a carrotvan. FAR from the max load of 6000 lbs.

The floor in the shop is smooth and I can’t imagine the casters jamming up.

Sure: but isn't this thread about making a Silk-Purse from a Sow's Ear?

Philly... WHY do you persist on being so SILLY?!

If these did not work - ON THE WHOLE - as advertised.... Hobo would stop selling them because people would return them.

I can’t give you a personal report TODAY .... busy this weekend.... but I’ll have them greased up and assembled by early week.

THEN I’ll even might post a vid of a 100 pound chick pushing my Carrotvan around WITH EASE.

Hopefully ...

I think you need to be in it behind the wheel going Voorm Vroom while she does!

That would probably be the fastest thing he’s been in for awhile. Lol.

Pinkster... so you’ve done that with your mother in law pushing you ?

And cHeEzYburgherGuy .... you were right yesterday BUT TODAY I picked up a brand new 2020 Scat Pack Charger !

Drove it about 300 miles ... that’s one sweet ride.