My pen takes International size cartridges. What are these?

"International" size, "International Standard" or just "Standard" size cartridges are generally used in pens that do not take proprietary cartridges (ie not Lamy, Parker, Aurora, Sheaffer, Pilot/Namiki, Sailor or Cross). Standard size cartridges are 38mm (1.5in) long and taper towards the part that goes into the nib unit (grip section). The capacity of standard-size cartridges is approximately 0.8ml. They are made by, for example, Diamine, Herbin, Kaweco, Monteverde, Private Reserve, rotring, Visconti, and Waterman.


See also our Cartridge and Converter Compatiblity page.

The picture below shows Diamine standard-size cartridges.

Diamine standard size cartridges


Testimonials ( 5162 )
(5,0/5)

Review By Robert G.,
Top class business. Always helpful, good communication and speedy with deliveries. highly recommend ...
06-01-2022
Verified Purchase
Review By EDWIN MORGAN,
I ordered a Parker IM Fountain Pen in black and chrome. The pen arrived promptly and securely packed ...
04-01-2022
Review By JM,
Great service from The Writing Desk. My order was processed over the holidays and I received it the ...
31-12-2021