Recycled Polypropylene Ballpoint Pen Set
Ballpoint pen set made from recycled polypropylene. Refillable. MUJI is known for minimal design and sustainable materials.
How scores are calculated
Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.
Packaging (20%): Is the product packaged in plastic? Is it recyclable?
Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?
Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.
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Last updated: April 6, 2026
Office and school supplies contain a surprising array of toxic chemicals: phthalates in plastic binders and folders, formaldehyde in pressed wood furniture, PFAS in stain-resistant fabrics, and BPA in thermal receipt paper. Children are particularly vulnerable to chemical exposure from school supplies they handle daily.
Why We Recommend This Product
MUJI's recycled polypropylene pens are a meaningful improvement over conventional single-use plastic pens. The refillable design dramatically reduces plastic waste over time.
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