Shopping for new tires isn’t cheap. For the average vehicle, getting a complete set can cost hundreds of dollars.

While there are ways to get deals, the costs associated with a new set of tires are often unavoidable. This may be why some buyers instead opt for used tires. Although there are drawbacks to buying used tires, the benefits of buying used—namely, the significantly reduced price—are occasionally too tempting to ignore.

Sometimes, however, these downsides come back to bite buyers. One tire salesperson recently experienced this firsthand, sharing her story on TikTok.

What Went Wrong With This Tire Purchase?

In a video with over 1,400 views, TikTok user Tire Princess (@tireprincess) says that she recently sold a customer “four run-flat tires … for $600, 20-inch, for his BMW.”