Thank you for viewing. Pelikan nib unit. Can be installed on Souverän M600/M400/M200. Use it to change the nib width. Nib material: 14C, 14K, 14 carat gold, 585 Nib width: F (Fine) - Only the nib unit itself is for sale. - Please understand that this is a used item. There are scratches and stains. Please check the images. - No missing parts. - Please refer to the profile for other common notes. [About the fountain pen] This is a nib unit that can be installed on Pelikan Souverän M600/M400/M200. The reason why these three types are compatible is that there were originally #500 and #600 fountain pens, which had the same barrel size and were differentiated by the purity of the gold nibs, 14C and 18C. After that, #500 became M400 via #400, and #600 became M600, and although the barrel sizes were separated, the nib specifications were maintained, so they are still compatible today. M200 is derived from M400, so it is compatible. When you want to change the nib width. Also, when you want to make an M200 a gold nib pen. In addition, it can also be installed on fountain pens with chrome trim, such as M605/M405. In that case, you can enjoy the slightly different atmosphere of the chrome trim/bi-color nib. #Tamayoshi's fun and enjoyable fountain pens