Gel ink ballpoint pen refill Refill UMR-85E Uni-ball Signo 307 0.5mm Black 659
Product number: UMR-85E.24■This is a 0.5mm refill for "Uni-ball Signo 307" that uses ink containing the new material "cellulose nanofiber".. Ink color: Black. Size: Height = 111mm Width = 5mm Thickness = 5mm.