Arts & Crafts > Art Supplies > Pens & Pencils > Pens > Gel Pens
10 Colors Glitter Gel Pens Set AL-K91
Brand: Generic / OEM
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Audited BOM: 7 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Inconsistent glitter gel ink viscosity (ENG-001) and irregular glitter particle size (ENG-002) cause writing failures and tip clogging. Combined with a low-quality ball in the tip (ENG-003), this results in pens that don't write or fail constantly (RMA-001, RMA-003), leading to customer dissatisfaction (REV-001, REV-003).
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