What better way to highlight than with some of the elements responsible for making traditional neon lights glow different colors? 

Each pack contains 6 unique colors:
Xenon
Mercury
Krypton
Argon
Neon
Helium

Details:
Ink Type: Water-based ink
Pen Type: Highlighter
Tip Size: 5 mm chisel tip
Material: 100% Recycled Plastic