108-piece GIOTTO Turbo Maxi Color School Box: 108 colored Giotto Turbo Fibre Pens in a class pack with washable, non-toxic ink. Color of ink: Zwart Material: 144-piece outpack They are made with safe, washable inks and have a fine fiber tip that is incredibly resilient and long-lasting. Exceptionally sturdy and resilient tip Polyester was fixed.