Knock type fountain pen “Capless” “Capless” is the world’s first knock type fountain pen developed and commercialized by pilots, and it is a long-selling product that lasts about half a century since its release in 1963. Like a knock-on ballpoint pen, you can quickly write with one knock, and when storing the pen tip, the airtight shutter mechanism prevents ink leakage and drying. Due to original ideas and outstanding functionality, we are highly evaluated overseas as well as in Japan.