Description This CURT ATV tow ball / lawn tractor hitch ball has a 1-7/8" ball diameter. This standardized dimension will fit virtually any 1-7/8" trailer coupler, including small utility trailers, gear haulers, landscaping trailers, teardrop campers and much more (capacity limited to lowest-rated towing component). The trailer ball comes with a 1-3/4" x 5/8" shank to easily and securely drop into a lawn tractor tongue or ATV tongue or even a ball mount. It fastens securely with the included nut and lock washer.