REESE Towpower One ball mount bar for 3 ball sizes Eliminate carrying extra bars for different trailers 1 78 in ball 200 lbs capacity 2 in ball 600 lbs capacity 2516 in ball 1000 lbs capacity 212 in outer diameter Black powder coated Provides the greatest convenience and versatility for ease of use to customers who have various towing requirements Simply adjust the ball mount and rotate to the desired hitch ball Engineered and tested to exceed towing standards