TWSBI Diamond Mini / Eco Rose Gold Replacement Nib (Nib only, excludes feed/grip)Replacement rose gold plated nib for the TWSBI Eco and Eco T range of fountain pens. This is a genuine replacement nib, made in Germany from high quality stainless steel with rose gold plating. Excludes feed or grip section shown in image. The Eco nibs are friction fit and require some care as you fit the new nib: Remove the old nib and feed, noting the orientation of the barrel Slide the new nib and old feed in as a pair Ensure the nib is fully