Uni Jetstream Refill Black pack of 3 for a single color pen, 0.38mm,0.5mm,0.7mm
◎ : Has compatibility (The refill is mounted on the pen). This refills fits with only the single color pen in that table. Ink Color: Black. SIZE：0.38mm(SXR-5). 0.5mm (SXR-5 ) . 0.7mm (SXR-7 ).