Invincible Marine 1000-Pound Trailer Jack Made using the highest quality components Performance and quality tested The most trusted name in marine accessories and equipment Swings from its vertical position to horizontal for a fast getaway The side crank jack has a poked wheel and grease fitting while this jack also includes corrosion resistant zinc plated steel tubing The swing-up jack has a convenient side wind handle and a tough 7-inch diameter polypropylene wheel Fits tongues up to 3-inches x 5-inches, provides 28.5-inches of lift and a 12-inch travel Comes with a 1-year warranty