100pcs gel pen refills 0.5mm ink gel pen refills for needle tip liquid gel pen/rollerball gel ink pen - needle tip red kodoria <br/>- super fine quality, no leaking or clogged. smooth, consistent and long lasting ink flow. no issue with smearing, written on paper without bleeding through. wash off skin with ease. <br/> <br/>- gel ink refills for gel pens, applicable to most brands of pens. <br/> <br/>- non-toxic and acid free, safe and fun gift for children, teens and adults.