Faber-Castell Super-Polymer H Leads 0.7 mm When polymerized, mechanical pencil leads are highly resistant to breakage and extraordinarily soft. They are easy to reload and are compatible with any mechanical pencil of the same size. Ideal for drawing, writing or taking notes on any type of paper. They guarantee fine and detailed writing. 12 fine 0.7 mm leads for all conventional mechanical pencils. Intense black lines Clean and simple refill with practical filling accessory. Hardness degree: H. Line width: 0.7 mm. Brand: Faber-Castell.