Has a good one and is what I use. The one you choose depends on if you have a Supper or Standard beetle.
Mine is a Super beetle and the bar was very easy to fasten. You will need some grade 8 bolts (metric) the dia. of the ones you remove but longer. I used ones about 1 1/4 inches long. I also used blue Locktight but still check them from time to time.
Once the tow bar is installed,(about an hours work or less) you will need to provide an attachment point for the safety chains.
I used a 4 ft length of 5/16 chain attached with shackles. On the right side of the frame you will see a towing loop welded to the frame. It is about 3/8" stock. that works fine for that side but the left side needs something attached. I used a 3/8 chain coupling and removed one of the bolts that holds the sway bar and using a longer bolt and some strong washers bolted it on.
Seems to work fine.
You of course CAN'T fasten the safety to the tow bar itself. If the tow bar was to come loose for some reason the chains would go with it.
Once that is done I used a magnetic mount tail light assembly that I picked up at Canadian Tire. That allowed me not to have to
tie into the car wiring.
At first I placed the lights on the roof but found some scuff marks so I made a couple of brackets and mounted them using the bumper support bolts. The lights fit there just like if they were made for it.
Now with that done you are ready to tow.
The newer VW's or at least mine has a steering lock that does not lock until you remove the key.
This allows you to leave the steering unlocked but the ignition to be turned off.
If your stearing lock won't allow this you will have to disconnect the battery.
If you don't allow the wheels to turn and follow the corners you will scuff the tires badly and put a lot of strain on the steering components. 
That's about it but don't try to back up. I know that doesn't work too well. I have a dented fender to prove it.
We do tow our Bug with a motor home and a Pontiac Van.
When towing with the motor home you can't tell it's back there. In fact you even can't even see it.
I have one of those small flags that are window mounted that I put in the right window and I can see the flag when towing knowing
that the bug is still back there.
Our motor home is a 24 ft Class C with a 350 Chev engine.
Happy towing and if you have any more questions please let me know.

    Now Tim is mainly collecting vintage cars.  It all began with a purchase of four vintage cars at once. I have attached a pix of them when we got them home. Tim knew of these cars for 20 years before he had an opportunity to purchase them. He got these (4) cars and (8) truck loads of NOS parts. I said that he won the "Volkswagen Lottery". Our friend Larry called it the "Mother Lode". No matter what we called it, it was the talk of the VW world around here. People were calling and dropping by just to see what all Tim got. 

    The green car is a 1951, Red is 1952 Zwitter and the Carmel & Creme is 1955. The 1955 is the first one he completed because it was in the best shape of these (4). It was a one owner. It is mine, then he completed the 1952.  These cars are restored to original but the 1951 is a different story. This one is the "fun" car. It has his dune buggy motor in it. He had sold everything to do with off roading, except the motor.  It is a 2165.

       He has many other in line to be completed.  The last of the "Mother Lode" collection is a 1947.  It started out in pretty bad shape. It would not be worth restoring if it were not his oldest car.  It is in progress, but it is about 75% complete. He also has a 1959 Karmann Ghia, it is at a body shop and has been there for a long time. Our friend that is working on it, he just works on it between customer's work.

Here is a list of all the cars he has right now. The ones that are not restored are in line to be. It may take him the rest of his life. But that is his plan. These are the collection cars, and they are not for sale.
1947 
1951 The Surf Board car.
1952 Zwitter the red one.
1953 Zwitter
1954
1955 Slide sunroof
1955 this is the Carmel & Creme one.
1956 Slide sunroof
1957 Slide sunroof
1959 Low light Ghia"

"Above are some pictures of our 1965 Splitty Ex-Ambulance. Built in Germany in November '65 and shipped the same month to Bahrain for service.  It was factory fitted with 6 opening side windows (pop outs), a second rear view mirror (wing mirror), asymmetrical headlamps for left-hand traffic and dished pistons fitted to the engine for low octane fuel. Sadly it was decommissioned and re-trimmed as a microbus before it was imported to the UK from Thailand. Since purchasing it from the guy who imported it we have been collecting parts to show its heritage. Such as 2 Ambulance Buzzer buttons and an original 6 volt Ambulance Buzzer/ Sounder, this is now wired into a 12v to 6v convertor. As you can see from the first picture we have an Ambulance step fitted. The Step came from a VW company in the UK. It was frozen and in need of restoration when we got it but now with the help of a pair of pushrod tube seals it now runs freely. The trim for the step was sourced from the USA and the rubber mat from Brazil. 

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He had the following to say about his car

Is a five generation VW. There would not be a great notice talking about a VW beetle. I think thousands of VW around the world are a five generation vehicle.
The difference is that mine is five generation in the same family.
In 1978 my Father in Law bought it. Is a mexican standard 1600 model.
He used it a few months, and then gave it to his father in law.
That man (my grandfather in law) used "my" VW 
until he died 5 years later.
After that, my wife's brother bought the VW to his father.
He used it until 1989. In that year my brother in law sold it to my Father.