This is a brush for handpainting models.

Softer bristles than conventional brushes! The brush tip is soft and fluffy like baby hairs, so even with soft water-based paints, the brush tip can be used to spread paint smoothly without tearing off paint film, making it a great match for water-based paints.
Suitable paints: water-based paints, oil-based paints, lacquers, urethane paints, etc.
For painting large surfaces, fine paint at the tip, and gradation painting. Brush tip length approx. 5mm: brush width approx. 9mm