This multi-ball ball mount features a 2" and a 2-5/16" ball. The 2" ball can handle up to 7, 500 lbs. of gross trailer weight and 750 lbs. of tongue weight, and the 2-5/16" ball accepts loads up to 10, 000 lbs. with 1, 000 lbs. of TW. This multipurpose ball mount also features a hollow shank to accept an anti-rattle kit. | Curt Multi-Ball Mount (2" Hollow Shank, 2" & 2-5/16" Chrome Balls) #45002