The Copic Multiliner SP is a professional tool of the highest quality and these refills are made to suit the Copic Multiliner SP pens which have the grey ink. This is not suited for black ink Multiliners.
For black ink for Copic Multiliner SP pens, you need the Ink Cartridge A or Ink Cartridge B Refill.
These refills suit the Copic Multiliner fine liner pens only and are not made to suit other brands.
All copic markers and pens are Made in Japan and are the number one tools for creative people - whether professional, semi-professional, or hobbyist!
INK: Grey Ink. Waterproof. Acid free. Archival quality.
SUITS: Copic Multiliner SP pens which have GREY INK
DOES NOT SUIT: Black Ink Multiliners. For these, use the Ink Cartridge A or Ink Cartridge B.
SOURCE: Made in Japan