Fits 3/4 and 1 diameter Convert-A-Ball interchangeable shanks;Diameter: 1-7/8;Towing capacity with 3/4 shank : 3,500 lbs.;Towing capacity with 1 shank: 10,000 lbs.

• Convert-A-Ball 300B Nickel-Plated Replacement Ball - 1-7/8
• 1-7/8"

Convert-A-Ball 300B Nickel-Plated Replacement Ball - 1-7/8Convert-A-Ball