Because it uses fluorescent pigments, it has good color development even in the dark, and it looks great.
Can be used with all types of trigger strands such as natural fiber yarn, chemical fiber thread.
No rust, no freezing, and cold resistant to -5°F (-15°C).
It has excellent ink and will not flow even when it rains.
For drawing lines using ink cartridges for wood, iron steel, glass, stainless steel, roof tiles, synthetic panel materials, etc.