CURT square jacks are a heavy-duty trailer jack option. They are designed to weld directly onto the frame of your trailer for superior holding strength. This CURT direct weld square jack features a support capacity of 8,000 lbs., a lift capacity of 7,000 lbs. and a travel of 15". With a jack foot plate attached to the bottom, this type of jack also provides added stability for your trailer on rough terrain. It comes with a side-wind handle and is an excellent choice to meet the high demands of the farming life and construction industry. 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 your trailer wrong, CURT has the answer.