Sarasa Gel Retractable Pens in vintage color series has smooth water-based pigment ink that is long lasting and waterproof, as well as a comfort grip and spring binder clip.
This water based gel ink dries in less than a second on most surfaces. The retractable pen tip is also sturdy enough to endure hard writing pressure and pen drops.
 
Tip Size: 0.5mm
Dimension: .60 x .45 x 5.6 in
Manufactured by Zebra