suitable for applying eye shadows from synthetic fibers professional beauty assistant made with love for nature KillyS BAMBOO fluffy soft eye shadow brush is made of synthetic fibers suitable for applying eye shadows. Brush 04 is ideal for even application over the entire lid, thanks to its slightly elongated, flattened bristles. Brush 05 designed for blending, highlighting the creases of the eyelids or for highlighting the inner corners. For an even more perfect look!