CURT swivel jacks get their name from the pull-pin swivel feature that allows the jack to pivot on its mounting bracket and swing up and out of the way for travel. Our swivel trailer jacks are broken into two categories: pipe mount and bracket mount. With a jack foot plate welded on the bottom, this type of jack also provides added stability for your trailer on rough terrain. It comes with a top-wind handle and includes a weldable pipe with a 9/16" hole for secure mounting. It does not matter what kind of trailer you tow - a boat trailer, utility trailer, livestock hauler or recreational vehicle trailer - if you have a receiver-style trailer, you will want a jack that complements its function. For a trailer jack that will not steer you wrong, CURT has the answer.