First of all the bearings and carbide seem really decent. But the build quality is terrible. The bat arrived with most of the paint already peeled off in the packaging. To make matters worse, the bolt holding the bearing was overtightened and almost completely snapped off. The Allen key that came with it didn't even fit, it was so deformed. After removing the screw with a wrench, part of the thread was completely torn off. Obviously there is no quality control and it would not be safe to use such damaged threads. It sucks, Frued costs three times as much, but I think it's better than losing attention on this thing. I pay 30 dollars extra