Kitera | Mechanical Pencil | 0.5mm | DoubleChuck | KS-03

This product uses a double chuck mechanism. The double chuck mechanism secures the lead at two points, the front and back, preventing it from wobbling while writing. It also holds the lead at the tip, making it less likely to break even under strong writing pressure, allowing you to use the lead without waste until the very end. It also has a built-in "cushioning function" that provides a stable writing experience.