Bic Ballpoint Pens 4 Colours Grey. Barrel colour: black grey. Line Width: Blue Black red : 0.5 mm Pencil: 0.7 mm. Number of colours: 4. Clip: yes. Suitable for left-handed people: yes. Retractable: yes. Copyable: yes. Refillable: yes. Nib width: fine. Pen type: ballpoint pen mechanical pencil. Erasable: yes. Ink Colour: Blue Black Red Grey.