The Balea Callus Remover Pumice Sponge is designed for effective callus removal on hands and feet, tackling stubborn dirt like oil, ink, paint, and nicotine when used with water. Ideal for regular use on wet skin with or without soap, it gently smooths rough areas but should be used cautiously on sensitive skin. Those with circulatory issues or diabetes should consult a doctor before use. The packaging is eco-friendly, made with at least 70% recycled content.