Pelikan M800 fountain pens are large piston-filling pens with an 18K gold nib. The Souverän M800 is a fairly large pen. It posts securely and the brass piston mechanism adds just the right amount of heft, creating a wonderful balance. The Pelikan Souverän 800 Black Blue fountain pen is a timeless classic for all fountain pen lovers with its blue semi-transparent body made of cellulose acetate. With its blue body and warm gold on the clip and ring bands, this fountain pen is elegant yet simple, making it a versatile choice for writing. The Pelikan Souveran collection is available in 4 shades - Blue, Red, Green and Black and two trim options - Gold plated trims (M800) and Palladium plated trims (M805).