Mr.Hobby/Gunze - Weathering Pastel Set 1 (3 colori).
This is a pastel set suitable for expressing dirtiness, dust and mud.
It is powdery and may be used as is.
Dusty expression: Take it with a brush and place it as is.
Muddy expression: Dissolve it with Aqueous Color Thinner and rub solution with a brush or swab.