Ohto Rollerball Black Pen Refill .5mm

Smooth writing ceramic tip, brass barrel, water based ink. Black ink, 0.5 mm fine point. Fits Ohto and any other rollerball pens that take the standard international size rollerball refill. 

Compatible with Schmidt 5888, UNI UBR-300, Pentel BLF5, Zebra A-300, Sailor 83-0300, Pilot 30EF/30F/50EF, Sakura H refill, Pelikan 338, Levenger APP934.