These Staedtler Stick 432 Ice Ballpoint Pens come with a transparent, colourful barrel that corresponds with the bright ink inside. The ergonomic triangular barrel creates a relaxed writing experience and the ink flow is particularly smooth. The pens have a coloured cap that also match the ink colour and stops the ink from drying out, plus, the handy clip makes them easy to take with you when you're on the go. You can use them for your everyday writing and drawing on paper types. The pen contains oil-based ink which flows smoothly. They have an ergonomic triangular shape for relaxed and easy writing.