This pen is a combination of the mechanical pencil and ballpoint pen for common writing. Pen length 144,35 mm, pen diameter 13 mm. Lead of the mechanical pencil is 0,5 mm and hardness B. The ballpoint pen liners are 0,7 mm average and in red, blue, and black colour. Track length is about 800 m. Transparent sleeve colour of the multi-purpose pen. Included is the plastic clip and eraser under plastic cover. Screwing above the plastic grip is needed to separate the front part of the pen to replace the liners. The lead for the mechanical pen can also be replaced from the front by fine sliding out of the white part and replenishing of the lead.