Take the bulk out of your pencil case with the handy COS 4-Colour Ballpoint Pen. Switch between four vibrant, smooth ink colours with a quick click of the barrel and enjoy the convenience of carrying one pen for all your notetaking. 

Features:

• Slim, smooth rounded barrel design for comfortable writing
• Switch between inks by sliding the ink of choice down the barrel
• Includes a handy pocket clip to keep your writing partner secure
• Each pen carries 4 ink colours: Black, Blue, Red & Green
• Medium 1.0mm nibs
• Box of 12