Uni-Ball Eye Needlepoint UB-185S is a high quality and reliable liquid-ink rollerball pen, with a strong needle tip. Smooth-flowing pigment ink is waterproof, fadeproof and highly secure. Uni-flow system ensures reliable, consistent ink flow to the last drop. Strong, springy metal clip is long and strong. Barrel colour matches ink. Fine 0.5mm tip writes a 0.4mm line.