This Vallejo Flat Weathering Synthetic Brush S (4) is perfect for creating textured effects. With flat, durable synthetic fibers, this size S (4) is ideal for applying textures and pigments on terrains and achieving stunning weathering effects on models. It is also suitable for applying varnishes and gels. The fiber length of this Vallejo Flat Weathering Synthetic Brush S (4) is 11mm and the fiber width is 4mm.