tobwolf 8 pack 70mm 82a indoor inline skate replacement wheels, indoor skating wheels with abec-7 bearings, luggage wheels, training wheels for scooter - black tobwolf <b>product specifications</b><br><br> package included: 8 x inline skate replacement wheels<br><br> wheel diameter: 70mm<br><br> wheel thickness: 24mm<br><br> wheel hardness: 82a<br><br> bearing inner diameter: 8mm (but the white plastic spacer inner diameter is 6mm)<br><br> <b>note 1:</b> the white plastic spacer of these wheels is suitable for 6mm axle. however, if you pull out the white plastic spacer, the bearing would be suitable for 8mm axle.<br><br> <b>note 2:</b> some customers have the 6mm axle, while others have the 8mm axle, so we add the plastic spacer to deal with these two situations.<br><br>