Neon-colored Staedtler Triplus Fineliner Six-piece set of fineliners with metal-clad, ultra-fine tips An ergonomic triangle for comfortable and effortless writing DRY SAFE: with the exception of neon colors, they can be left uncapped for days without drying out. Most textiles can be readily cleaned with water-based inks. Long service life is guaranteed by PP barrel. Line thickness: approximately 0.3 mm