Set of 4 heavy duty furniture/appliance/cart castor wheels

Set of 4 heavy duty furniture/appliance/cart castor wheels. Perfect condition. I bought a wood card which came with these but I didn’t want to roll the cart around so I took them off to use it more as a storage table. 2 of them have a lock mechanism and the other 2 matching them don’t so you can have a lock on each side of whatever it is attached to.