Liquid Ink Pens sets are suited for smooth and continuous writing on any paper. These ink roller pens have a hard-bearing and inert body because of flawless coating on metal palladium. Our offered roller pens are pleasant and convenient to use since it has a roller-ball smooth-running precious ball tip. Liquid Ink Pens sets feature a patented extra fine precision tip for smooth, skip-free working each moment. Moreover, for precise writing, our unique ink formula maintains even and flowing strokes. The Rolling Ball Pens provide clean lines and even ink delivery. Ink colors include black, blue, red, turquoise, purple, and green.