Disappearing pen. Double-sided marking pen designed for temporary marking on fabrics, paper, wood, and plastic. It features two colors — pink and violet — which gradually disappear depending on the material type and environmental conditions such as temperature, humidity, and air circulation. The pink mark typically fades within 24 hours, while the violet one lasts up to 48 hours. Marks can also be removed instantly using water or the special eraser. This pen is ideal for use in tailoring workshops, embroidery services, design studios, and home sewing. It is recommended to test the pen on a scrap piece of material before use to avoid any unwanted reactions.