STABILO worker+ colorful Rollerball Pens Black Pack 10

Liquid-ink rollerball which lets the ink flow fluently and without any interruption. Medium tip writes a 0.5mm line width. Indestructible tip. Glides quickly and smoothly across the paper. Smooth, smudge-free writing. Ergonomic design prevents hand fatigue. All-over non-slip surface for comfort. Black. Pack 10.