Wolfe FX Sponges have a rough texture, great for applying makeup, blending of face paints or for special FX applications. Wolfe Sponges are highly dense, extra firm sponges made from open cell foam, which is consistent with sea sponges. These sponges are about the size of hand palm and can be used over large areas. They can be cut into half for precision work. Wolfe sponges are soft on skin and are easy to clean and reuse.