Pilot frixion pens have been my go to fabric marker for a few years now. They have a 0.7mm rollerball nib and the blue ink is erasable - either by
Pilot FriXion Clicker Erasable Gel Pen
Pilot FriXion Erasable Rollerball Pen - Purple
Why Pilot FriXion Pens Are Every Parent's Back-to-School Bestie
Blue Frixion Ball Erasable Gel Pen, Pilot #FX7-BLU
Pilot FriXion Ball Clicker Erasable Gel Pens, Fine Point, Assorted Ink, 7/Pack (31472), Staples
Pilot Frixion Clicker 0.5mm Violet - So Typical Me (IE)
Pilot FriXion Ball Clicker Erasable Gel Pens, Fine Point, Assorted Ink, 3/Pack (31467)
Pilot Waai FriXion Erasable Highlighter - Trendy New Colors – CHL-STORE
Available in a choice of 10 Colours 10 assorted (1 of each all colours). To avoid accidental erasure, do not leave writing where it may be subjected
Pilot FriXion Ball 0.7mm Erasable Rollerball Gel Pen BL-FR7 - ALL Colours
Pilot Frixion Ball Clicker Gel Pen
Keep your office stocked with plenty of pen refills to ensure you're always ready to take notes. The gel ink formula of these Pilot FriXion refills
Pilot® FriXion Erasable Gel Pen Refills, Fine Point, 0.7 mm, Black Ink, Pack Of 3
Make corrections while you write with this 6-pack of Pilot FriXion Point extra-fine-point assorted erasable gel pens., Add bright colors to notes with
Pilot FriXion Point Erasable Gel Pens Extra Fine Point Assorted Ink 324192
Pilot Frixion Clicker Pen (Navy) – Carolyn Friedlander
Blue Frixion Heat Erasable Pen from Pilot - And Other Adventures Embroidery Co