(1) The tips of watercolor brush pen are made of PBT (Nylon/
Synthetic Fibers) .
(2) High quality
(3) We had exported the tips to Japan, South Korea.
(4) They can also be used in watercolor brush pen,Japanese Art
Pocket Brush Pen.
The PBT brush tips are produced by our own automatic machines. And
by this kind of machines, it could make our production efficient
and manageable, and avoid making problem by the handmade
way.
