Easily remove color of your brush: Simply glide eye shadow brush against the surface of black sponge to remove color and switch to next colornEfficient and Reusable: Both Sides of the black sponge are usable; The Sponge could be washed with a fragrance free soap and warm waternThis sponge tool allows you to use the same brush with different eyeshadow colors in one usenPerfect for removing powder color/shadow color, not for liquidnSize: 3*3*1 inches, easy to carry and use; made of Acticarbon Scurbbing Sponge, highly effective and environment friendlyn