Hi there, I'm Michael with etrailer.com. Today we're gonna take a quick look at this Shocker Gooseneck Surge Air Hitch Coupler. This is a shock-absorbing gooseneck hitch that's going to replace your existing 4" round blank stem and coupler. And this does feature this industrial strength airbag and these cushioned bump stops that will dampen the jerking and road shock that you often experience… see more >