Consistent, free-flowing ink delivers fluid writing the moment pen hits paper. Elevate your everyday with the sophisticated style of uni-ball Designer Series. Airplane Safe-ink will not explode or leak due to a change in cabin pressure during flights. Exclusive uni-flow ink system provides consistent smoothness and color intensity. uni Super Ink provides three-way protection against water, fading and fraud. Pen Sub-Brand & SKU Line: VISION ELITE Designer Series Pen Style: Stick Pen Type: Roller Ball Pen Refillable Yes/No: Yes.