Make an impact with the 207 Impact Gel Stick Pen Refills. Use refills with your uniball 207 Impact Gel Stick Pens in black. They feature a bold point (1.0mm) with a stainless steel tip that resists bending & breaking. Even-flowing, pigment-based, gel ink renders an outstanding ink laydown for a smooth writing experience & strikingly bold lines. Ink is perfect for everyday writing tasks & signing checks or documents, trusting its quick-drying, uni Super Ink. Innovative, uni Super Ink technology entraps ink deep into paper, preventing document alteration, water damage or fading. The 1.0mm point delivers bold writing with a silky finish.