Mystery Black
Two Mystery Black M (Medium) rollerball refills, reference MB128231 confirmed by the manufacturer's variant selection. Confirm the refill format required by your rollerball.
Pack of 2, Mystery Black, M / Medium · reference MB128231
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eMontblance31.10.2026The official catalogue separates standard, LeGrand, small/Mozart and capless refills. The reference description needs to match your model. Do not treat all rollerballs within a collection as interchangeable.
If two descriptions or FAQs conflict, confirm the instrument–refill pairing against the specific reference or official service. Do not force a refill based on a general rule.
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