7pcs/set Handwriting Calligraphy Magic Pens Refill Ink Disappearing Pen Calligraphy Class

Label:Yes Package: 1Pen with 6Refills Name: Automatic fade pen Line width: 0.5mm(0.02in) Refill color: blue Length: 14cm(5.51in)

1. This product is suitable for students to copy workbook copybooks, do exercises, children's drawing, handwriting will disappear in about 20-30 minutes, disappear without leaving traces, does not affect rewriting, does not affect repeated use of the writing board. 2. The fade rate is related to weather temperature and humidity.The ink refill is environmentally friendly, safe, non-toxic and non-polluting. You can slide the refill back and forth on the eraser before use.