Four kinds of wool are mixed in a golden ratio to create a soft and delicate brush stroke, and with an octagonal pen tube, it is easy to draw the desired lines and paint. Add \"WP Film\"Technology, can be removed with warm water, no makeup, waterproof, oil and sweat resistance. In addition to this, it contains no preservatives, alcohol, and gluten-free and any animal-derived ingredients (including milk, eggs, honey). It has also been tested for allergy and is very mild.