Uni Smudge Proof Lead 0.5 mm – HB, 2B & 4B

Keep your favorite mechanical pencil writing with these Smudge Proof, Nano Diamond Infused lead refills.

• Extra durable diamond-infused lead is stronger than standard lead, delivering strikingly dark marks
• Nanodiamond lead is useful for schoolwork, art projects, and note-taking
• Smudge-proof technology keeps your artwork and writing clean, without any messy smears
• Make sure to check compatibility with your favorite mechanical pencil before ordering
• uni-ball Nano Diamond Mechanical Pencil Lead refills available in 0.5mm and 0.7mm