Sold as 4/Box. Bring attention to essential words and phrases with Avery Hi-Liter Desk-Style Highlighters. 4 per pack. Durable plastic tip for smooth highlighting will not fray or 'mush'. Versatile chisel tip which allows for precise highlighting on both wide and narrow lines of text. Vibrant read-through colors won't bleed through paper. Safety Data Sheet. Highlighters come in assorted colors and are ideal for marking important documents. Improved formula allows you to leave the cap off for up to one week and still highlight. Quick-drying, non-toxic formula conforms to ASTM D4236 standards. Durable, extra-smooth writing tip is molded to write in 3 line widths.