We focused on maximizing the performance and longevity of your CeramicSpeed pulley wheels when we designed the special pulley maintenance oil. Remember to add oil to the outside of the bearing seal after riding in wet conditions or after washing the bike. If you ride in tough, wet conditions, we recommend choosing the All Round grease instead and greasing the bearings from time to time. When using the maintenance oil, the recommended dose is 1-2 drops. The UFO TECH Pulley Wheel Oil is PFAS-free. • 15 ml bottle. • PFAS-free, biodegradable formula Note: Can be fatal if swallowed and enters airways. Technical Specifications & Safety Information: Chemical composition, oil type - Synthetic hydrocarbon oil Storage temperature: 5 – 40 °C Minimum operating temperature: -45 °C Maximum operating temperature: 100 °C Incl. warning label (As shown on label)