Muji pens are a planner essential! Smooth writing tools. The pens are 0.5mm with an ink cap. .5mm is an average but still thin ink nib for a clean look.
Rotring 500 0.5 mm Drafting Pencil Review — The Pen Addict
Pentel Calme - Tokyo Pen Shop
Muji Smooth Writing Gel Pen 0.5 mm - Black — Stationery Pal
5pcs Set, Gel Pen, Planner Pens, Back to School, School Supplies
Planner Necessities: My Top 3 All-Time Favorite Gel Pens
Accessories – Pretty Planner Co.
Retractable Gel Pen, Planner Pens, Kawaii Stationary, 6 Colors
Fine Tip Pen: gel pen with 0. 5 mm tip produces smoother, thinner lines to offer outstanding performance. Long-lasting pen offer easy to remove the
NYKKOLA Japanese Style Gel Ink Pen 0.5mm Colorful Fine Ballpoint Maker Pen for Office School Stationery Supply,Pack of 12, Assorted Colors
Muji 0.5mm Gel Ink Pens new Version
5pcs Set, Gel Pen, Planner Pens, Back to School, School Supplies