These jacks feel solid and well-built. The metal has good thickness to it and doesn’t feel flimsy, and the mechanism moves smoothly when raising or lowering. The crank operates without binding, and the jacks extend evenly without feeling loose or unstable. Once set, they hold steady and add noticeable stability to the trailer.The height range is practical and gives enough adjustment to level and stabilize on uneven ground. They feel strong under load, and the wide base helps keep them planted. Overall, they’re sturdy, easy to operate, and do a good job reducing movement when the trailer is parked.