Rollerball pen features an extra-fine needlepoint (0.5mm). The stainless tip very smoothly writes a precise 0.25mm line on almost any paper. No skips, no blobs, no bleed-throughs. Ink just glides onto the paper without you needing to press down hard to produce consistent sharp and clean lines. Airplane-safe barrel contains a high percentage of recycled plastic. Begreen Refillable Tecpoint 5 Rollerball Pen is refillable with black or blue refills.