Help keep your jack stands neat and tidy. Mounted to a dolly with feet and wheels to the rear. Simply grab the top handle, lean the dolly back and glide off to your vehicle delivering 4 jack stands in one smooth trip. We use these in the shop and they help greatly with keeping our jack stands stored cleanly, as well as allow for fewer trips back and forth from one side of the shop to the other when putting a car up on stands. 
We offer these as a bolt to the wall option as well.
These work with most 6 ton jack stands.