GSI Creos Mr.Hobby Weathering Pastel Set 1GSI Creos Mr. Hobby Weathering Pastel Set 1 Weathering pastel set for recreating sand, mud, dust and other grimy conditions. Conventional pastels require a file to grind powder, but weathering pastels can be used right after they are removed from the bottle. Apply these pastels, as is, on a model to get that grimy effect. Included: Dark Brown PW01 (15g) Light Brown PW02 (15g) Sand PW03 (15g)