The pen has a Fine 0.7mmnib. Pop’Lol are perfect for adding some colour to your every day writing and drawing.The ink is pigmented to be bright and vibrant.The barrel colour matches the ink colour so you can easily find the right pen.Each pen is retractable so you can protect the nib when not in use.It also has a handy lift clip with a spring coil for easy carrying on your pocket or book.