Andibro 3.4mm Bore Diameter Fountain Pen Ink Cartridges, Refillable Black Blue Business Fountain Pen Refills 20 PCS Disposable Ink Pen Refills (Black)

"----------------- WELCOME TO OUR SHOP -----------------"
Packing List: 20pcs Fountain Pen Ink Cartridges
Product Size: 5x0.7cm/1.96x0.27inch
Box Size:9.8x5.7x1.1cm/3.85x2.24x0.39inch
Compatible  Fountain Pen:3.4mm
Ink content: 5ml/ per stick
Ink Color: Black and Blue
Material: Plastic