Ball pen refill GR-W1 blue

– for ball pens: GR-2051, GR-2051A, GR-2078C, GR-2057A, GR-2006A, GR-2013, GR-2060A, GR-2062, GR-2067, GR-2067A, GR-587, GR-557, GR-5302, GR-5750, GR-5760, GR-2052A, GR-2055A, GR-2108A, GR-535, GR-2102, GR-2115
– writing lenght: 1000 m
– line thickness 0,7 mm
– blue ink color