Have you ever had a situation where you have a good idea but no pen to wright it down? The Y Studio portable ballponit pen hopes to enable people to have the best writing experience in their lives and travel, and enjoy the pleasure of pen tip sliding across the paper. The brass pen body maintains the most comfortable handwriting weight, and uses a smooth OHTO refill to bring a smooth writing style. Simple and safe hanging design, even during work or travel, you can write down and grasp each writing moments！