jj770.5mm (standard writing) jjs770.4mm (fine writing)

[2 pens] black 2 pens [3 pens] black 3 pens [5 pens] black 5 pens [10 pens] black 10 pens [2 pens] 1 black and 1 red [2 pens] 1 black and 1 blue [combination] 1 black pen +2 black core [combination] 1 black pen +3 black core [combination] 1 blue pen +2 jf blue core [combination] 1 red pen +2 jf red cores [3 pens] 2 black and 1 red [3 pens] 2 black and 1 blue [3 pens] 1 black 1 blue 1 red [3 pens] blue 3 pens [3 pens] red 3 pens [combination] 1 black pen +5 black core [combination] 1 black pen +10 black core [combination] 1 blue pen +5 jf blue core [combination] 1 red pen +5 jf red cores [5 pens] 3 black 1 blue 1 red [5 pens] 3 black and 2 red [5 pens] 4 black and 1 red [5 pens] 4 black and 1 blue [5 pens] blue 5 pens [5 pens] red 5 pens [5 pens] random combination order remarks [10 pens] 8 black 1 blue 1 red [10 pens] 8 black and 2 red [10 pens] 6 black 2 blue 2 red [10 pens] 9 black and 1 red [10 pens] 10 pens in blue [10 pens] 10 red pens [refill] black 5 pack [refill] black 10 boxed [refill] black 1 pack [refill] jf blue 5 pack [refill] jf blue 10 boxed . [refill] jf red 5 pack [refill] jf red 10 boxed [1 pen] black [1 pen] blue [1 pen] red