Zebra Gel Pens, Retractable, 0.7mm, Ink/Assorted, Barrel, 24/Pack, Clear (ZEB14680) Sarasa Gel Retractable Pens contain a smooth-flowing, water-based, pigment gel ink Soft rubber grip provides writing comfort and control Smooth gel ink delivers scratch-free writing Translucent barrel provides visible ink color and supply Ink is acid-free and archival quality