They are perfect for Outdoor and Indoor skating and are maintenance free!
Comes with the magnetic spacer that has to be used to generate the power to light up the LEDs.
Can be used only with 8mm axles!
Size: 72mm
Thickness: 24mm
Hardness: 88A
Bearing Core: 608 (Standard)
Spacer: 10.25±0.03mm
Recommended Surface: Road, Asphalt