Optima Fixed Tip 15 Feather Edger. Same as 14 except this one is bent the other way for lefties. Tip for #14 & #15: These pens do not have a sharp edge. To eliminate any metal that has rolled over the edge from polishing, place the edge perpendicular to a fine stone and move over surface once. Remember this pen's edge acts like a ski and like a ski its edge has to be square in order to work properly.