What sets these double-ended neon highlighters apart? The dual tip; one end is a chisel tip and the other a dual-nibbed tip that draws 2 lines at the same time. One side is a chisel tip so you can use it to make bold lines. The other end is a dual tip highlighter that you can use to highlight, underline or decorate with twice the emphasis. Your school, office or homework will never be boring again when you have a marker set that can color, write and highlight at the same time. Set of 6 dual liner neon highlighters. 6 colors|dual line tip and bold tip.