S.T. Dupont Felt (F, M) Refill

• Length: 115.4mm (4.54″)
• Manufacturer’s website: S.T. Dupont

The S.T. Dupont Felt Pen refill is a proprietary size and shape that will only fit some S.T. Dupont rollerball pens. This porous tip refill is available in black or blue ink in a fine or medium line width.