Trailer Hitch w/Hook Receiver Mount Triple Tri 3 Towing Ball 1 7/8" 2" 2 5/16" Premium Heavy Duty 3 Way Ball Mount (Tri-Ball) 3 Ball Sizes (1-7/8" and 2" and 2-5/16") 1-7/8" Ball 3500lbs - 2" Ball 5000lbs - 2-5/16" Ball 7500lbs - Hook 7500lbs Fits 2" x 2" hitch receiver opening Heavy duty powder coated steel construction with chrome plated balls