I ordered two sets of these tire skates to move a small Cub Loboy tractor around my garage. The end result is they work great and I recommend them. I don't have any issues changing direction, but keep in mind the tractor is substantially lighter than a car. I still think I'd easily be able to move a full-sized automobile though as long as it was on good concrete.When the boxes arrived one arrived pretty beat up, but all parts and pieces were there so no harm no foul. The second box arrived a day later. It was in good condition, but one of the locking wheels was missing. I contacted Ihubdeal through Ihubdeal's communication channel and I'm happy to say they were very responsive with their communication. They immediately shipped the missing wheel, so besides a small delay, I was able to assemble and use the skates right away. I'd definitely buy these again.