pilot g2, dr. grip gel/ltd, execugel g6, q7 rollerball gel ink pen refills, 0.5mm, extra fine point, black ink, pack of 6 pilot delivers quick-drying, water-resistant and smear-free results. patented, advanced liquid ink technology formulation offers a consistent, smooth flowing write. trust pilot for premium quality performance. pen refill type: roller ball; special ink type: gel; refill for series: for pilot q7, g2, g2 limited, g2 pro, g2 fashion, g6, precise gel begreen, dr grip ltd, dr grip gel, b2p gel, mr metropolitan gel roller; tip type: conical. for pilot q7, g2, g2 limited, g2 pro, g2 fashion, g6, precise gel begreen, dr grip ltd, dr grip gel, b2p gel, mr metropolitan gel roller