HELP! Tow Bar

[littlemo]

I am shopping for Tow Bar and want to make sure I am buying the correct thing. There are some that look like they attach to a hitch but what I need to attach to MH is NOT that. Is this correct?

Here are some I found on Craigslist. Could anyone tell me if these are the right thing. I know that I also need "Base Plates"????? for my Nissan Frontier apart from the Tow Bar??

There is
1. this


2. this

3. and this

Are these the type I need or am I looking at the wrong thing?

Thanks so much for your help.

[ronfisherman]

1 Is good.
2 Is ok.
3 Only if I was going to tow 1 time.