Is it an international size?

No. Cross Fountain Pens only use Cross branded cartridges such as this one.

Does anyone else have trouble with Cross blue-black ink clogging their pen? I write in Mead notebooks and never have trouble with the plain black or the plain blue. But the blue black will clog up and the nib has to be cleaned every few pages when I use it.

Been using them for years and never had a problem. Sorry you are having difficulty, guess you should just stick with plain black or blue.

will this fit a Cross Aventura?

Yes, it will fit the Cross Aventura.

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🖋️ Elevate your writing game—because your ideas deserve the best ink.

GIFT READY ELEGANCE - Presented in a sleek gift box, perfect for marking milestones with style.
ENDURING RELIABILITY - Lifetime mechanical warranty ensures your pen never lets you down.
SEAMLESS COMPATIBILITY - Designed to fit a wide range of Cross fountain pens, from Bailey to Wanderlust.
UNMATCHED INK LONGEVITY - Each cartridge writes up to an impressive 1.2 miles—keep creating without pause.
PRECISION IN EVERY STROKE - 0.31mm medium-point tip delivers crisp, bold lines for standout writing.

Cross Fountain Pen Ink Cartridges in black offer precision 0.31mm line width with a smooth, bold ink formula. Compatible with multiple Cross pen models, each cartridge writes up to 1.2 miles and is backed by a lifetime mechanical warranty. Packaged gift-ready, these authentic ink refills blend heritage craftsmanship with modern reliability.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

715078₫

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Manufacturer	Cross
Brand	Cross
Item Weight	0.352 ounces
Product Dimensions	6.5 x 2.2 x 0.31 inches
Item model number	8921
Is Discontinued By Manufacturer	No
Color	Black
Closure	Snap
Material Type	Ink
Number of Items	1
Size	6 Count (Pack of 1)
Point Type	Fine
Ink Color	Black
Manufacturer Part Number	8921S

Cross Fountain Pen Ink Cartridge - Black (six per card)

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