- Durable tip stays sharp longer;
- No smearing, doesn't bleed through;
- Non-toxic ink, ASTM D 4236 certification;
- Ideal for architectural drawings, labels, office paper;
- Anti-roll body design for better grip on smooth surfaces;
- Construction helmet clip: the INKZALL highlighters can be clipped to the helmet, trousers, overalls, etc.;
- Lanyard hole, e.g. to attach the INKZALL highlighters to the belt.