The "Concava" style pen is one of the few 7mm slim-lines that I look forward to working. The gentle curves appeal to my sense of design. To my eye, the organic flow allows the simple writing tool to become "pen as art". The beauty of depth and detail in Redwood burl was perfect for this iconic shape. So y'all, from time to time, I guess that I can express simple elegance and not just the over-the-top design that you typically see from me. Enjoy, and lemmie know what you think. Your feed back is most welcome.