The premium Xpress Fineliner porous-point pen features water-based ink and a unique, metal-encased writing tip. An ergonomically shaped, rubberized barrel provides a more secure hold while helping to prevent hand fatigue during longer writing sessions. The unique, metal-encased, needle-like, gliding-fiber tip ensures smooth-glide, bold writing performance, while making this marker-type pen ideal for use with rulers, stencils and templates. "Cap-off ink" doesn't dry out easily, even if the cap is removed for two to three days. Handy cap with metal clip fits neatly on either end of the barrel.