Fastway Flip 88-00-4500 Trailer Tongue Automatic Fold-Up Jack Foot Plate for 2 1/4" Jacks--4" extension (2-Inch inner Jack Tube) Foot flips up as jack is retracted, making storage simple and convenient Eliminates the need for blocks of wood 4" Extension minimizes amount of cranking required to position jack 1,600 lbs. max tongue weight Extremely fast and easy installation