Staedtler Stick Triangular Ballpoint Pen Fine Black Box 10 4320 F-9

Yes. 432 F-9 is the older reference for this pen. Staedtler now list it as article 4320 F-9, the black ball 4320 F, and current boxes are printed ball 4320.

Ten black pens. Staedtler Australia supply the 4320 F in 10s with a minimum order of 10, so one box is one unit here.

It is Staedtler's fine grade, with a ball of about 0.7mm. For a bolder black line, the medium 430MA-9 uses a 1.0mm tip.

Staedtler's catalogue describes it as indelible and conforming to ISO 12757-2. They make no claim about removing it from clothing.

Yes, the red fine pen in the same range is listed as 4320 F-2.

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