Frisk natural water sponges are a useful set of five sponges designed to remove excess washes from your watercolour paintings as well as stippling and spreading paints for landscapes feathering and blendingwet the sponges or apply them directly to the watercolour paper to gently soak up the water from the wash or to spread your paints across great for blending and colouring this natural painting solution is a great addition to your painting arsenalcontains five spongesremoves excess washes