Schmidt easyFLOW 9000 is a roller refill packed inside a ballpoint casing. These refills are suitable for every rollerball and ballpoint pen that uses the international Parker standard. The Schmidt roller refill easyFLOW glides more easily over the paper than any other writing system. The ink flow starts instantly even after a longer pause of writing. SchmidteasyFLOW 9000 combines the advantages of the well-know ballpoint refill with those of a rollerball refill creating a completely new writing experience