Bearing removal tool for wheels built with 6 mm shoulder style bearing spacers (not 8 mm floating style). Stick this into the bearing spacer, and tap out opposing side bearing. Then put bearing spacer back in and tap out last bearing. We sell in packs of 2 since they are aluminum and can deform (get smashed at the neck) if bearing in super tight and need to hit hard. 

We recommend always using new bearings in new wheels, so this is really only needed if you want to put new bearings into your used wheels.