The CURT 21100 Trailer Hitch Ball Hole Reducer Bushing is a game-changer for anyone who needs to adapt their trailer hitch to fit balls with smaller shank diameters. This handy tool reduces a 1-inch diameter hole to a snug 3/4-inch, ensuring a perfect fit for your trailer ball.

Constructed with a durable yellow zinc-plated finish, this bushing is built to withstand the elements, offering long-lasting protection against weathering. Plus, it comes with a limited lifetime warranty—one year on the finish and one year on parts—giving you peace of mind with your purchase.

Users rave about its effectiveness. One reviewer mentioned, 'It works GREAT on the hitch. Thank you.' Another user highlighted its versatility: 'I keep one of these in my trailering kit; they fit perfectly for fitting a smaller shaft into a larger hole.'

While most reviews are positive, some users noted minor issues like slight slop between the bushing and the hitch hole. However, even these users reported no significant problems during use.

Overall, the CURT 21100 is praised for its quality and functionality. It’s an affordable solution that saves you from buying new equipment, making it a valuable addition to any trailering kit.