BIG RED Boat Trailer Jack with Single Wheel 6 Inch,1000 Lbs Capacity Swing-Back Bolt-On Heavy Duty Swivel Tongue Trailer Jack,ATR39001R-1.Lift Capacity: 1,000 lb 1/2 Ton Retracted Height: 10-1/2 inches 267 mm Extended Height: 20-1/2 inches 521 mm.Constructed with high-quality zinc-plated corrosion-resistant steel, ensuring ultra durability and protection.Bolt-on bracket can be easily mounted to 3" to 5" trailer tongue and folded up when traveling.Features a side wind handle with integrated grip and a 360° swivel 6" Nylon wheels.Comes with bolt-on mounting hardware for installation and includes a limited 1-year manufacturer warranty.Powerful PP Tire. The trailer tongue jack is equipped with a PP tire that provide a larger surface area for smooth and stable movement. The tire is more stable and less prone to sinking. It can withstand mud, gravel, and sharp rocks without getting stuck or damaged. Heavy-Duty Load Capacity: Trailer jack boasts an impressive lifting capacity of 1000 lbs., making it a powerful tool for lifting tasks. With a lifting range of 10-1/2" to 20-1/2", it fits for no matter high-profile or low-profile trailers.