Sailor 50 ml Fountain Pen Ink Reservoir Bottle Adapter

Description

This small, lightweight plastic insert is custom‑designed to fit Sailor’s square 50 ml ink bottles. When placed inside the bottle, the reservoir gathers ink at a low angle so your pen can reach the final millilitres without tilting the bottle excessively or risking a spill. It’s a simple, cost‑effective tool to minimise ink waste and keep refilling clean and convenient.

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