The Giotto Turbo Advanced Colour Pens are fine tip fibre pens with water-based super washable inks.Intense and bright assorted colours.Fine fibre tip (diameter: 2.8 mm).Water-based colours Washes off skin with soap and warm water and fabrics on a 40° washing machine programme.Ventilated choke proof cap safety cap.Extra strong tight fitting nib.Extra-resistant long-lasting fibre tip meaning it retains its point.