These highlighters feature a chisel nib that allows two different line-widths and a distinctive design that fits nicely in the hand and keeps them from rolling away. The water-based vibrant ink is suitable for paper, copies or faxes. Don’t worry if you accidentally forget to put the cap back on! The cap can be left off for up to 4 hours without drying out. Set colors include one each of green, orange, pink and yellow.