Includes an assortment of 4 fluorescent pink and 20 fluorescent yellow highlighter markers Smear Safe formula keeps the highlighter ink on your notes so they won't smear across pens, markers and inkjet inks Versatile chisel tip lets you highlight or underline in various widths Unique ink formula won't dry out for up to a week even with the cap left off Enjoy low-odor highlighters that are ACMI certified and conform to ASTM D4236, meaning they’ve been independently tested and meet strict safety standards