With a tip size of 0.38 mm, Ball Slim is the finest ballpoint pen in the Frixion line. The u ltra-fine tip is perfect for everyday writing, note-taking, or scribbling down small annotations into your textbooks. Also, since the body is super slim and not bulky, you can easily pile a whole bunch of them in your pencil case. The ink is thermo-sensitive and can be erased by friction. Simply rub the rubber tip over the writing, the ink disappears cleanly and there are no eraser shavings.
Pilot FriXion Ball 4 Erasable Multicolor Ballpoint Pen Transparent Body
JetPens.com - Pilot FriXion Ball Slim Gel Pen - 0.38 mm - 20 Color Bundle
Pilot Frixion Erasable Gel Pen 0.5mm, Extra Fine Red, 10pcs Box : Office Products
3pcs Refill for Japan PILOT FRIXION ball LFBTRF12UF 30UF3 slim 0.38mm roller ball pen -3 Color - AliExpress
PILOT LFBS-18UF Frixion Erasable Gel Pen 0.38mm Superfine Writing – CHL-STORE
Erasable Frixion Ball Slim Biz - Tokyo Pen Shop
Pilot Hi Tecpilot Frixion Erasable Gel Pen 0.38mm - 20 Colors, Slim & Smooth Writing
Pilot FriXion Slim Pen 0.38mm Pink
Pilot FriXion Ball Slim Gel Pen - 0.38 mm - 20 Color Bundle
PILOT LFBS-18UF Frixion Erasable Gel Pen 0.38mm Superfine Writing – CHL-STORE
Pilot Frixion Ball Slim 0.38mm - Blue Black
Pilot FRIXION Slim Clear Pens 0.38mm Multi Color Barrel REFILLS New Design Body