Pk/5 Schmidt 888 Safety Ceramic Rollerball Refills, Blue, Medium 0.7 m
Schmidt 888 Safety Ceramic Rollerball Pen Ink Refill - 6 Pack of Black Ink Fine Tip Point (.6mm)
Amazon.com : Scriveiner Rollerball Refill Blue Medium - 4 Rollerball Refills Designed Pens - Safety Ceramic Non Dry Roller Pen Refill M - Schmidt 888 Size – Made in Germany : Office Products