Some other reviewer complained that the max tow was only 8000 lbs, when he expected 10,000. Here's the thing -- if anyone's trying to tow upwards of 8000 lbs, you need a class IV hitch which requires a bigger ball shaft and is designed for higher tongue weights. I've seen too many unsafe trailer setups on my travels, so buy what you need and don't try to overload the design. That being said, this set is fine for me as I frequently need to change ball sizes for different loads. I couldn't find the 3 ball set anywhere locally, so Amazon was a good choice. The only thing preventing a 4-star rating is the "made in China" label. I'm just fed up with nearly everything we buy being made offshore. It looks well made, however, and should last a good long time.