Portable 2 post lift

I have seen them in use but do not know anyone who has one currently. I saw other products made by this company that uses two of these to lift a car, and three of them to lift a car on a trailer at the PRI show in Indy last weekend! The car was a nice Cobra replica and the car trailer was a very cool kneeling type that was expensive, so they must work well! Here is a pic of the trailer, should have taken pics of the car on the trailer up in the air...