SSD x Quantum ceramic bearing

Bearing Design: ceramic hybridPrecision Level: *****Use Case: high impact street and park skating Keep your speed on the streets with the only ceramic hybrid on the market designed for high impact street/park skating. Isotope series bearings feature high precision chrome steel inner/outer rings, diamond polished raceways and rolling elements, zirconium oxide (ZrO2) rolling elements, high strength thermoplastic cage, and our proprietary Graphflo engineered lubrication process. Each Isotopes Series Bearing Kit Includes: 8 x isotope series bearings 16 x frictionless shields (8 installed, 8 spares) 8 x speed washers 1 x tube of low-viscosity bearing lubricant (2ml, single use)