Inline Skate Wheel Bearing with 8.1mm Diameter HoleWaterproofStainless SteelFor use with L-3841, L-3842, L-3843, L-3844, L-3845 & L-3847 light up in-line skate wheels when using L-3848 Plastic Spacers.Country of Origin: CNCategory: Wheels & FeetCategory: Luggage Wheels & FeetCatalog: NEWBase Material (Primary): Stainless Steel