Designed to withstand frequent water exposure. Wheels allow for greater mobility and easier coupling of your trailer. Heavy-duty pull-pin lets them pivot on their mounting bracket so they are out of the way for travel. Zinc finish protects against corrosion and moisture damage. Side-wind handle. Includes bolt-on installation hardware. | Curt Marine Jack, 1,500 lbs wt. capacity, 10" travel, 8" Diam wheel