Superior Quality V7 Hi-Tecpoint Rollerball Pen Range (0,7mm Tip / 0,5mm Line) – Often Imitated But Never Surpassed. Pure Liquid Ink Gives A Smooth Writing Experience & Long Lasting, Vibrant Colour With Special Unique Nib That Gives Great Precision. Multi Dimple Rollerball System Gives Smooth, Skip Free Writing – The Ink Flow Regulator Ensures Consistent Ink Delivery.