GoGoPo 10 Colour Pen
This 10 colour pen from GoGoPo means that you only have to bring one pen to school or work but you have ten colours to choose from!. Simply choose which colour you want, press down on that colour and write until you feel like a change. Then press the top button to retract that colour and select your next colour!
Choose between pink, purple or blue outer casing. The price is per pen, not for the three pens in the picture.