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Refill Piston for Fountain Pen Cresco 5 pcs (spare piston units)
Summary description:
Pack of five Cresco replacement pistons designed for use with compatible fountain pens. Each piston unit serves as the internal filling mechanism component, enabling ink intake and secure sealing. Suitable for repairing or refurbishing pens that use piston-type filling systems. Practical for hobbyists, pen repair, and maintenance tasks.