These innovatively designed stabilo neon highlighters feature a unique soft tube design for comfortable use the bright neon ink is water based to prevent drying out and to remain vibrant on the page the chisel tip nib produces a 2 5mm line for neat underlining and bold highlighting this pack contains 10 highlighters in neon yellow innovatively designed stabilo neon highlighters unique soft tube design for comfortable use bright neon water based ink line width 2 5mm colour neon yellow pack