Concept: Have you ever had great ideas but couldn't find a good pen to write them down? Or needed to borrow a pen in a hurry for important moments? ystudio understands that a pen lover always needs a good pen. After a year of dedicated effort, we're excited to launch our new Portable Ballpoint Pen. Description: The ystudio Portable Ballpoint Pen is designed with a sleek suspension function. You can wear it as a necklace or hang it on your bag. When you need to write, simply twist the pen and you can start writing smoothly. With beautiful lacquer and brass details, a well-adjustable weight balance, and a rebound mechanism, it becomes a must-have pen for you. It comes with a necklace and a ring so you can create your own unique lifestyle. The refill is a 0.7mm gel ink refill customized by ystudio that writes smoothly and with pleasure. Specifications Material: Brass Specifications: 9 x 10 x 139 mm Weight: 30.0 g (without tail ring) Refill: ystudio ballpoint pen refill (0.7 mm gel ink), also suitable for Parker type ballpoint pen refill Use and care You can create a custom brass effect by removing the paint from the surface with sandpaper that comes with the product packaging.