CALLAS MAKEUP BRUSH MAGIC SWAP DUO-SPONGE A major concern for makeup artists is the long dry time associated with liquid cleaners when attempting to remove powder products from brushes. This magic sponge will allow you to switch colors easily without the need of switching brushes. The white sponge in the center is specially designed for applying cream type eyeshadow while removing the previous colors on your brushes with the black sponge. Both sides of the sponge can be used. It is made of quality metal with a rust-proof coating. It is also made compact and lightweight so that it is easy to transport. How to Use Swipe the brush over the sponge until the pigment is removed. The special material allows you to remove pigment from your brushes without a brush cleaner formula. The sponge is completely reusable by washing it with warm water and soap. Squeeze out all pigment, and lay flat to dry.