The Pelikan M205 Demonstrator special edition fountain pen is a masterpiece of technical precision, giving a view directly onto the differential piston mechanism, the heart of the fountain pen. With the clear transparent barrel, you can see the interaction of the sophisticated black-coloured inner parts while operating the ink handle and lets you see how much ink is inside. Featuring a steel nib and piston filler, this beautiful writing instrument is designed to last. This special edition pen is a treat to look at and write with, making it an ideal gift for any fountain pen enthusiast.