Cartier Diabolo de Cartier ballpoint pen with dedicated case. Thank you for viewing. This item is a beautiful, almost unused pen, only used for test writing. ⭐︎Notes: ① There is a small red spot stain on the lower right of the "Cartier" lettering inside the case lid. ② There is a slight indentation on the back of the white pen holder. ※ Please refer to the photos.