[Mark Deeply] 20mm long nib design: suitable for marking deep holes, or hard-to-reach places.1.5 mm fine tip, high hardness and not easy to break.
water-based ink, full and rich color.environmental safety non-toxic.after a number of strict testing to ensure color, performance stability.micro-hole pen tip, suitable for illustration, hand painting, DIY creation, hand account, design,animation and other color painting line when using.
