REESE Towpower Tri-Ball ball mount with hook provides the greatest convenience and versatility for ease of use to customers who have various towing requirements. Adjustable tri-ball mount with hook eliminates the need for carrying extra draw bars for different trailers. Simply adjust the ball mount and rotate to the desired hitch ball or hook depending on the application. Engineered and tested to exceed towing standards. Balls and hook are chrome-plated. Steel shank.