EYEYE black rollerball pens (model PVR155) with a 0.7 mm tip and liquid ink. - **Smooth writing:** liquid ink glides across the paper for clean, sharp lines. - **Steady ink flow:** no skipping, no leaks. - **Quick-drying:** dries in seconds, so it doesn't smudge. - **Comfortable:** lightweight, ergonomic body for long writing sessions. - **Long-lasting:** each pen writes about 5,000 ft (1.5 km). - **Ideal for:** the office, school, notes, journaling and signatures.