Pentel EnerGel FLASH! Liquid Gel Stick Pen, (0.7mm) Medium Line, Metal Tip, Black Ink, 12 pack (BL417 A)

Amazon

Dries in a flash for no-smear writing High-performance ink technology combines the best qualities of liquid and gel inks for a super-smooth writing experience Energel ink writes more smoothly than the leading Brand* (*internally tested to be smoother writing than the leading gel pen on standard writing paper) Liquid gel ink dries so fast even left handers love it - no smears, no smudges, no globs Doesn't bleed through most standard paper - great for adult coloring (use this for activity item)

Zoro Tools

The EnerGel Permanent from Pentel is a retractable, metal tip rollerball with waterproof, light-resistant and fade-proof ink, ideal for cheques, contracts and all manner of official and archived documents. The ink lays down smoothly and is quick-drying and smudge-proof, which makes it particularly suitable for left-handers.

Euroffice

Refillable retractable rollerball pen. Quick-drying ink -ideal for both left and right-hand writers. Made with 96% post-consumer recycled material. Medium 0.7mm tip for a 0.35mm line width. Reduces smudging on hands and paper.