Smearsafe™ feature provides smear protection across most pen, marker and inkjet inks. Durable tip for smooth highlighting - won’t fray. Use tip to highlight or underline. Sturdy clip for your pocket, organizer or binder. Cap can be left off for one week without dry-out. Quick-drying. ACMI® certified to meet Federal standards of nontoxicity; safe for office, school, or home. Conforms to ASTM D4236.