Mechanical Pencils
MONO graph 03: Transparency meets precision - in three delicate, transparent colors.
Available in various colours
from
€7.50
As the name suggests, a ball helps distribute the ink. It is integrated into the tip of the pen and rolls the oil-based ink paste from the lead onto the paper. Thanks to the thick paste, the ballpoint pen releases less ink than other writing instruments and is therefore more economical. What's more, the ink only dries after many years, making the ballpoint pen a reliable companion for a long time to come.
The Hungarian László József Bíró developed the ballpoint pen together with his brother in Budapest back in 1938. After 18 years of development, the invention was ready to be patented. However, the ballpoint pen only made a real breakthrough when Henry George Martin used it for the crew of the Royal Air Force. At high altitudes, other writing instruments had the problem of overpressure in the cartridge, causing them to leak. The ballpoint pen, on the other hand, was safe with its viscous ink paste.
What was once a revolutionary writing instrument has now lost some of its innovative image. Nowadays, ballpoint pens - also known as ballpoint pens - are handed out as promotional gifts on every corner.
Originally developed for use in space, space pens such as the Tombow AirPress Pen are also a real problem solver in many other situations. The name for ballpoint pens with gas pressure refills, also known as compressed air refills, is derived from their original purpose. A ballpoint pen was needed that could write reliably even in zero gravity. Thanks to the special gas pressure refill, space pens allow you to write in extreme situations. When you press the push button on the AirPress pen, part of the ink is released so that you can write upside down for longer than with a conventional ballpoint pen. In addition, it can withstand temperatures as low as -5°C without the typical breathing in of the ballpoint tip. In wet or dusty environments, it outperforms a normal ballpoint refill as the ball needs less resistance to rotate and therefore release the ink.
If you find it difficult to choose a refill colour, you can find the right pen for you with a multi-coloured biros. The Reporter 4 and Reporter 4 smart have an integrated blue, red, black and green ballpoint refill, each of which can be replaced individually. This allows you to write with a single pen and add coloured notes.
