8 bearings are included in one set.
10mm Precision Bearings, Chromium Steel Races, removable rubber seals. Oil lubed for a quiet and fast roll. Using the SZ 10mm axle system and our Pro-Series Bearings, you can feel confident that you have best combination available. The bearings were designed to be tightened securely and eliminating any unwanted vibration or friction from your wheels. As a final result your wheels last longer and spin faster than ever before.