Pilot 0.7mm (BTRF-6F) Ballpoint INK Refills
QTY: 1 Dozen BLACK 0.7mm
Features:
* Ballpoint ink refill for PILOT Birdy mini ball pen / Uniball Jetstream 3 & 4, Uniball Jetstream 4+1 multi-pen
* Refill length: 9.9cm, Diameter: 3mm, (check your pen and may be suitable for other brand compatible multi-pen)
* Oil-based pigment ink, giving it great waterproofness and fade-resistance.
