June 22, 2013
Much darker ink then that used in Pentel Pocket brush pen and is waterproof. I
use it as a refill for regular Pentel (standard or sometimes called Pentel color
brush pen) Superfine brush pen or regular brush pen. Ink that comes with those
pens is not waterproof. It is still good (especially if want watercolor effect)
but if need waterproof and super dark ink then this is it.
Dark: yes, very (much darker than used in Pentel Pocket brush refills)
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