Alumistinger 3517 by Andersen Manufacturing Aluminum Ball Mount, 6" Drop Bar Kit - 1" Shank Hole with 1 7/8" Ball and Locking Pin Light weight aluminum construction is 36% stronger than steel Polished High Tech Super Alloy Aluminum Lighest and strongest ball mount on the market. 8,000 lb. Gross Trailer Weight with maximum 800 lb. tongue weight Fits a standard 2" receiver No cracked paint - No rust - Forever!