BIC Mechanical Pencil Xtra Strong, 0.9mm, Assorted, 24/Pack One of the world's top-selling mechanical pencils. The smooth writing lead does not smudge and erases cleanly, and the lead advances quickly and easily. One mechanical pencil equals 2-1/2 wood case pencils, giving you more for your money. Mechanism: Mechanical; Pencil Type: Mechanical; Lead Color(s): Black; Barrel Color(s): Assorted. Available in yellow barrels and assorted colorful barrels with contrasting clip/nose cone colors.BIC