Spread joy with InkJoy™ and brighten up every page with ink that flows as freely as your thoughts. Paper Mate® InkJoy™ 100 RT Retractable Ballpoint Pens feature a smooth, fast-starting writing system that spreads ink easily, so writing’s never a drag. Even work and school can be fun when you have one of these vividly colored pens. Pen Sub-Brand & Product Family: InkJoy™ 100 RT; Pen Type: Ballpoint Pen; Pen Style: Retractable; Pen Tip Type: Conical.