dholly is right,that is what a wrap around tongue is,another thing to watch for is some trailers will have used car tires on it,might be alright for some but if your haulin vary much or your planning on pulling the trailer a great distance,I would try to find a trailer that has a regular trailer tire on it,I think they are designed different than a car tire,crank down jacks mounted on the rear are nice if your loading something heavy,I think a small dove is nice,don't really know why a small dove makes a difference just seems to make it nicer loading,Another thing to look at is wiring,I don't know how many trailers that I've had to rewire because of a shotty job,hate those little quick wire clips,we always use horse shoe clamps and shrink tubes.
And always try to get your trailer to set level when hooked to your truck,it will pull better if it is.