Kaweco's brass pens and pencils showcase the superb German engineering the brand embodies. The Kaweco Brass Sport is the heavyweight of the Sport series - it is turned from first-class brass, and at 44 grams the fountain pen is Kaweco's heaviest pen. At the other end of the scale, the diminutive Kaweco Liliput also comes in brass, as does the chunky Sketch-Up technical pencil.
Brass pens can take a lot of wear and tear whilst still looking great, and they feel great in the hand. You can either let them develop their own unique patina with use, or polish them up to restore their original finish.