first impressions left a lot to be desired
I had a hard time getting any ink into the pen using this converter. I ended up filing it with a syringe and using it like a cartridge and it works just fine that way. I think its capacity is the same or maybe a bit less than an international standard short cartridge. I have a second one to try with my other Kaweko Sport. If it works better, I'll submit a new review. If it doesn't work well, I'll just refill empty cartridges.