Fulton Bulk Tongue Jack are useful in fast easy swivel jack operation. The factory assembled mounting bracket provides for quick and easy trailer installation. 1:1 side wind gear ratio provides fast, easy jack operation. Provides up to 25 inch of lift. It is plated with heavy duty zinc steel tubing. 6 inch reinforced poly wheel is replaceable. It fits trailer tongues up to 3 inch x 5 inch.