This is a Shocker hitch 20k lb air ride for the front of the trailer to absorb the bouncing from the trailer hitting bumps. Paid over 850 for it and used it on my trailer with my mini excavator but, am selling all of it and this was sperate. It makes a HUGE difference and is made for a 3 inch channel fit and can put the pintle or 2 5/16 ball mount. Has about 3 to 4k miles of use on it. Trade for ps5 disc, car stereo stuff, Mac mini computer or?