Features: Mijia gel pen, making your writing more smoothly and freely. Switzerland imported refill and Japanese imported ink, smooth writing and quick-drying 0.5mm high precision tungsten carbide ball beads, writing flowing and smooth lines. 0.95mm penholder, comfortable to hold and control. All-metal precision connection parts, 50000 times rotation life test. Handy rotatable and retractable design, convenient to use. Fashionable and simple, suitable for business persons, teachers, students, etc.