Triplus Fineliner Porous Point Pen features an ergonomic, lightweight triangular barrel for effortless, fatigue-free writing. Design also features a 0.3mm superfine metal-clad tip, clip to attach to notebooks and pockets, and silky, smooth barrel surface. Dry-Safe feature means cap can be left off for several days without ink drying out. Water-based ink washes out of most textiles.