Add some style to your stationery with POP! Pen Harry Potter! This POP! Pen is perfect for jotting down all your ideas at home or on the go. Expand your Harry Potter lineup by adding this writing staple to your collection. POP! Pen is approximately 6 in (15.2 cm) tall and contains black ink. Vinyl pen topper is approximately 1.3 in (3.3 cm) tall.