Instructions for use: Mattifying stone roller. Face roller glides effortless over the complexion, absorbing the excess oil and leaving a matte appearance. Usage: Gently roll over shiny parts of the face. Use with or without make-up. Your make-up will not be removed. How to clean: Rinse the stone with warm soapy water. Air dry completely bevor inserting again. If used regularly, replace the stone after 1-2 months. Includes one spare stone. Stone change: 1. Take of cap & unlock top pink part. 2. Take only the pink part in your hand & press down the stone with your finger from above. Take out the stone. 3. Insert the new stone in the small pink ring & close the hole pink part again before you insert it again.