Uni Smudge-Proof Mechanical Pencil Lead Refills

• Series: uni Smudge-Proof Lead (UL-S Series) — advanced graphite engineered for darker lines, smoother writing, and cleaner pages with reduced smudging
• Origin: Made in Japan — precision-manufactured to uni's renowned quality standards
• Lead Technology: Smudge-Resistant Graphite Core — specially developed to reduce graphite transfer while maintaining a smooth writing feel and rich, consistent lines
• Lead Sizes: 0.5mm and 0.7mm — standard sizes compatible with most professional mechanical pencils for drafting and everyday writing
• Hardness Range: HB, B, and 2B — carefully balanced graphite grades offering smooth performance, deep blacks, and reliable point durability
• Quantity: 40 Leads per tube — a practical, long-lasting supply for daily writing, studying, sketching, and professional use
• Case Design: Minimalist Slide-Case — a compact opaque case with a smooth sliding mechanism for quick, one-handed lead dispensing
• Features: Smudge-resistant performance, highlighter-friendly writing, smooth graphite flow, and consistently clean lines
• Use: Professional drafting, note-taking, studying, journaling, sketching, and everyday mechanical pencil writing
• Audience: Students, designers, professionals, left-handed writers, and anyone seeking a cleaner mechanical pencil experience

About the uni Smudge-Proof Pencil Lead

The uni Smudge-Proof Lead (UL-S Series) is engineered for mechanical pencil users who want darker lines, smoother writing, and cleaner pages with reduced graphite transfer. Developed by uni, this advanced lead technology delivers a refined writing experience while helping minimize unwanted smudging on paper and hands.

Perfect for everyday notes, technical drawings, study materials, and creative work, this premium mechanical pencil lead performs especially well with highlighters. Its smudge-resistant properties help preserve the clarity of handwritten notes, making it an excellent choice for students, professionals, and anyone who relies on mechanical pencils daily.

Advanced Engineering & Ergonomics:

• Cleaner Writing Experience: The advanced graphite formulation helps reduce graphite transfer, keeping hands and pages cleaner during long writing sessions.
• Highlighter-Friendly Performance: Designed to reduce the gray streaking that can occur when highlighting over traditional pencil marks.
• Minimalist Slide Case: The sleek opaque case features a smooth sliding mechanism, allowing quick and easy access to leads without interrupting your workflow.
• Universal Compatibility: Compatible with most standard mechanical pencils using the same lead size, including popular models from uni, Kaweco, Pentel, Rotring, Zebra, and other leading brands.

See the Smudge-Proof Technology in Action

Discover uni Smudge-Proof Lead: engineered for cleaner notes, smoother writing, and reduced graphite smearing.