I ordered a Kaweco sport fountain pen in green and a package of 6 cartridges via Amazon. The total for the pen and the cartridges was $27.22 USD, a nice price point.
The pen arrived in simple packaging. It measures 4 1/8 inches capped and 5 ¼ inches with the cap posted. Once the cap is posted it fits my hand nicely. I’ve had the pen for a month, and it is very comfortable writing with it. (For comparison I put it next to a Parker Duofold Juniorette.) The pen came with a cartridge which appears to be the equivalent of a short international cartridge which are easy to obtain. I doubt the pen could be fitted with a converter; however, I have not investigated that. If anyone knows, please respond and let readers know. The gold color stainless steel nib is a medium and it writes smoothly. Although it doesn’t have a clip the multifaceted cap prevents it from rolling off a desk or table.
In summary, this is a comfortable, smooth writing pen. You can’t beat the price point and they come in a variety of colors. I give the Kaweco Sport fountain pen a thumbs upl