Cello Jetta Gel pen pack contains 4 pens (2 blue, 2 black . With an jumbo refill, the Cello Jetta Gel pen packs a premium writing experience. With its ergonomically designed grip, and 0.7 mm tip get ready for a comfortable writing experience. With its stylish design and damage resistant tip, this gel pen will redefine smoothness in your writing. This gel pen set is ideal for students and professionals.