Call out bright ideas with appropriately bright colors of this Hi-Liter set. You can mark key words and phrases with brilliant fluorescent yellow, blue, green, orange and pink inks that are nontoxic. Molded chisel tip lets you highlight or underline, and the durable plastic material won't fray or mush. A faceted barrel provides a comfortable grip so you can wield the highlighter with ease as you mark documents, notes, books and more. Improved formula means you can leave the cap off for up to a week and still highlight with ease. Assorted fluorescent colors include one blue, one green, one orange, three pink and six yellow. ACMI certified highlighters conform to ASTM D 4236.