tul retractable gel pens 0.5mm needle point fine, black/blue bundle (2 4-packs) tul both 4-packs of pens included in this bundle consist of 0.5mm fine needle point gel pens - one in black ink, and the other in blue ink. all pens are push-button retractable and include clips. this means they are convenient to store in a shirt pocket, handbag, briefcase or backpack, and ink will not stain. these high-quality gel pens receive great reviews for a reason, like "best gel pen i've ever used."