Camco's Eaz-Lift Shanks are designed to provide excellent towing and smooth adjustability. They allow you to modify the vertical height of your ball mount. Made of heavy-duty forged steel with a powder coated finish for years of rugged use. Shanks can be used in either the up or down position to match the ball mount to any coupler height. They are designed to fit a 2. 5-inch x 2. 5-inch receiver and adapt to standard ball mounts. This model has an effective length of 12-inches with a drop of 5. 75-inches and a rise of 8. 75-inches. Rated for 15, 000 lb.