Staedtler 334sb20 Triplus Fineliner Pens 0.3mm Metal Clad Tip 20/pk Assorted Fineliner with superfine， metal-clad tip Ergonomic triangular shape for relaxed and easy writing DRY SAFE ? can be left uncapped for days without drying up (Standard atmosphere according to ISO 554， except neon colors) Water-based ink.