Ironton Bolt-On Side-Wind Marine Swivel Jack - 1,000 Lb. Capacity, Black Finish Durable 1/2in. pull pin activates the swivel mechanism, allowing you to swing the jack up and out of the way when not in use 6in. wheel for easy maneuvering Bolt-on mount fits trailer frames up to 3in. x 5in. &#160;Includes mounting hardware Corrosion-resistant exterior-grade black powder-coat body finish with zinc finish on handle arm