All the smoothness you would expect from a Gelly Roll pen with an added feature - the metallic lines you write 'outline' themselves in color for a dramatic and unique effect. 1mm metal ball pen. 5 colors included in the set. See Included Colors Below

This Set of Sakura Gelly Roll Shadow Pens Includes the Following Colors:
Blue-Silver
Green-Silver
Orange-Silver
Pink-Silver
Purple-Silver