Just one look at the New Fastway® Flip„¢ automatic jack foot in action, and it practically sells itself! Customers who are tired of hauling around wood blocks to place under their tongue jack will instantly want one for their trailer. The Flip„¢ bolts quickly and easily to almost any 2-1/4" jack with 2" jack inner tube; round or square. Extends and retracts automatically. Max 1,400 lb. tongue weight. Max 3,500 lb. lift weight. Includes 6" automatic extension and mounting hardware.