Kaweco is one of my favorite brands. Small, compact and problem-free fountain pens. And in price basis, it is rather cheap, especially when compared to its performance. You can click here for my Kaweco Sport review and here for Kaweco Liliput review.
One of the main questions about Kaweco pens is about the nib sizes. Therefore, I inked my EF, F, M, B and BB Kaweco pens with the Kaweco blue cartridge and I wanted to give an idea about the nib sizes and lines. If you wonder what is “nib size”, you can read this post.