-. Binding : Office Product -. Brand : TWSBI -. Color : Demonstrator, Clear -. EAN : 4711467443137 -. Feature : Fountain Pen / The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts / We felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen. / Diamond 580, a classic fountain pen with a piston ink-filling system. / FREE SHIPPING -. Label : TWSBI -. Manufacturer : TWSBI -. Model : TWS-M744 3130 -. MPN : M7443130 -. PackageQuantity : 1 -. PartNumber : M7443130 -. ProductGroup : Office Product -. ProductTypeName : WRITING_INSTRUMENT -. Publisher : TWSBI -. Studio : TWSBI -. Title : TWSBI Diamond 580 Fountain Pen nib M