will fit most rollerball pens that take a "universal" style refill
same refill as discontinued Quill 9550 or PRI 9550 made for ROLLERBALL PENS
bulk packaged
these do not fit a ballpoint pen
Description
Schmidt 5285 Extra Fine Black Ink Roller Ball Refill (5888 Style) Metal Body Roller Ball Refill. Safety rolling tube refill with metal tube and stainless steel needlepoint tip with Tungsten Carbide 0.5mm ball.