Paper Mate InkJoy 100 Ballpoint Pens, Black, 4 Count Spread joy with InkJoy! Paper Mate InkJoy 100ST ballpoint pens have a smooth, fast-starting writing system that spreads ink easily so writing’s never a drag. At work and at school, you can enjoy bold black ink that flows as freely as your thoughts. Brighten up every page and make writing more fun with Paper Mate InkJoy ballpoint pens.