Classic ballpoint pen with replaceable gel ink cartridge. The transparent body allows you to control the amount of ink. The tungsten carbide ball is very hard and durable, which keeps its shape when writing. The rubberised handle with profiling ensures maximum writing comfort. The ink used is waterproof and non-fading. Ball Diameter: 0.5mm Line width: 0.3 mm. Line length: 800 m. Package contents: 12 pieces. Colour: red.