While most brands have cut costs to give you cheap, mass-produced bearings, we've spent over 15 years obsessing over precision bearing manufacturing.  Our Abec-9 & higher bearings are now micro-cnc milled within 1/20,000" accuracy (thats about 1/50th the width of a human hair).  To this perfect micro-machine we add our propriety bearing lube creating the fastest, longest lasting bearing made.