Smooth writing, clean lines: The 0.5 mm refill is a spring-retractable design that can be quickly interchanged on a pen with a gentle press, and the tip provides a thick, solid line that is not too thick. It is suitable for writing inspections and diaries, painting art projects and coloring books.
Good performance: The transparent pen case allows you to see the pen operation more clearly. The anti-fading ink provides a solid writing line, so you can safely mark important information of different colors on paper or books.