When it comes to precise - smooth and uniform writing a mechanical pencil is the best choice. Comfortable and ergonomic grip zones provide a pleasant but yet exact result. Mechanical pencils are ideal for sketching - drawing and writing. You can choose between two line widths: the 0.7 mm lead for particularly break resistant writing or the 0.5 mm lead for fine writing. There are various ways of lead advancement available: from automatic - shaking - side click to top click.