WOODP Pens School Supplies Cartridge Converter Device Ink Absorber Ink Suction Device Ink Pen Pipette Instrument Ink Cartridge Filler Ink Supplies Fountain Pen Tool Bottled Cartridge

Caliber:3.4mm Package includes:1pc Ink Cartridge FillerSize:12.8cm 100% new brand and good quanlity Material: PMMA + ABS Description Add bottled ink quickly and easily to your pen The simple piston structure absorbs the bottled ink with a simple push of a button Refillable converter saves money and reduces waste from disposable cartridges