100 pieces of gel ink pen refill wholesale students use 0.5mm full needle tube bullet carbon pen water replacement refill black red blue

black syringe head c blue syringe head c red syringe head c black bullet c blue bullet c red bullet c

100 refills and 2 pens 200 refills and 2 pens 100 refill for free 10 pens 50 refills and 2 pens for free 50 black 50 blue get 2 pens free 50 black 50 red get 2 pens free 50 red 50 blue get 2 pens for free 90 black 10 blue get 2 pens for free 90 black +10 red get 2 pens free 80 black 20 blue get 2 pens for free 80 black 10 blue 10 red 2 pens 40 black 40 blue 20 red 2 pens 50 black 30 blue 20 red 2 pens 20 refill for free 1 pen 100 refills 200 refills 4 refills 1 refill