Next generation bearings, designed for today's skateboarding g3's. Deep Groove raceways BALLS roll deep in Raceway channels reduces side impact damage & breakage. Straight edge frictionless shields POP off resistant holds oil in, dirt and moisture out easy to clean. Micro Groove Raceway surfaces linear microgroove surfaces improve bearing lubrication, speed and spin. Max impact cage design non distortion custom cage keeps the BALLS precision spaced & oil circulating. Balls out technology eliminates Shield and cage contact on impact for a go fast, stay fast bearing. High speed ceramic oil Nano ceramic compounds for wear protection moisture, rust, corrosion resistant. Factory fresh quality nitrogen filled shrink wrap, reduces metal & oil oxidation until ready to be ridden.