The OTR.988 Ball Pen Fluid can be used for a few things... People who use to cook their own inks often use balllpen fluid like the BIC pens to thicken their ink. It takes quite some pens and leaves a lot of plastic. Now you have that in a bottle, just as easy!

4 different colours in a 100ml bottle.

You can also use it to;
- pimp up your INK & PAINT:
- make colors more deep & dark
- make your ink more thick
- make your paint perfect
- for steel-ball markers
- color your correction pen‘s; one drip in white = nice pastel color
- make your own economical INK:
- one bottle + 1 Liter regular solvent is about 1,1 Liter ink
(use not more than: 10-15%INK concentrate
for any mixing with other paint & ink)
Extremely economical !