Sharpwriter Mechanical Pencil, HB, 0.7 mm, Assorted Color Barrels, 12 Per Pack, Sold as 12 Each Retractable mechanical pencil with HB lead hardness features a yellow barrel, a 0.70 mm lead diameter, twist-action tip, pocket clip and cushioned point grip. Economical, disposable pencil. Cushion point adjusts to writing pressure, reducing lead breakage. Twist-to-advance mechanism easily advances lead.