These bic brite liner highlighters contain vibrant water based fluorescent ink with a high resistance to light and fading the chisel tip writes a 16 34mm line width which is perfect for both bold highlighting and fine underlining great for use at work home or school the slim barrel is designed for comfort in use this assorted pack of 5 contains yellow pink green orange and blue slim barrel highlighters water based fluorescent ink ink is resistant to light and fading chisel tip fo