1213-D Metal Fountain Pen

140 x Ø13 mm Box/Package Quantity: 500/50 Blue Refills
Laser Printing Printing Area: 40 x 5.5 mm
When turned in the direction of the arrow, the piston moves down.
When turned in the direction of the arrow, the piston moves upwards.
It fills the cartridge with ink by creating a vacuum.