Camco's Eaz-Lift Weight Distribution Shanks are designed to provide excellent towing and smooth adjustability. The shanks provide the additional length you need to obtain clearance from the bumper interface. They have 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. This model is designed to fit a 3-inch x 3-inch receiver. It has a drop of 6. 25-inches and a rise of 8. 25-inches.