Deep cleaning of the brush and make the brush more clearly,more durable and comfortable Simple Switch removes color from your brush simply and quickly without any liquid or soap Both sides of the black sponge usable. the sponge could be washed and reused. Efficient and Environmental friendly Create that perfect look with multiple eyeshadow colors. A quick swipe of your brush across the sponge cleans your brush Good for removing powder color/shadow color, not for liquid. Used for Brush Color removal, cannot replace daily cleaning