Zensations Mechanical Pencils Lead Refills are 2.0mm and provide smooth, rich, color.. This 2.0mm lead holds up to the pressures of beginning writers and never needs sharpening. They are perfect for writing, coloring and illustrations. Each pack includes 30 leads and were designed to complement Zensations Mechanical Pencils. Sold as 3 packs for a total of 90 leads.