1Marking pen refill's marking line will disappear immediately while its temperature gets to 60. 2Used for temporary marking of shoes, clothing and leather, fabric marker pen refill keeps exquisite craftsmanship. 3With high hardness steel tip, marking pen refill's marking effect can be improved, durable. 4And white will recolor at minus 60 , while blue, red, and black will reappear at around minus 8. 5Furthermore, white is used on dark leather, red, blue and black is used on light leather.
