Quantum Bearing Science Metallic Series caps wax in the shape of

wax in the shape of a parking block

Central 360 Strap

Using a suede upper

With amped-up technical features

All the same great features of the Spark Flat Pucks

Quantum Bearing Science Metallic Series caps wax in the shape ofA twist on the classic. The Metallic series bearings are made with high purity, high quality carbon steel for the inner outer rings and roller balls. Then they run the raceways and roller balls through a proprietary diamond finishing process. From there Quantum includes high tensile strength, hydrophobic retainers these bearings were designed with stability, flow, and mechanical strength in mind. Each bearing is coated using their GraphFlo(TM) process