Features: The chirography usually disappears within a few hours to one or two days, generally not more than 10 days. (Pink and Purple) The disappearance time will vary depending on the temperature, humidity, air circulation and fabric. After painting, it will slowly fade, not disappearing at the specified time (Pink and Purple) Mainly used for clothing,shoes, leather and other industries for the purpose of marking, it is convenient and simple. On the strong adsorption fabric (such as cotton, polyester cotton, sponge), the marking disappears for a long time, and the marking on the weakly adsorbed fabric such as nylon and chemical fiber disappears very quickly.(Pink and Purple) The disappearance time varies greatly depending on the method of use (eg, points, markers, line segments, line labels, etc.). The chirography will disappear only if the pencil being washed by water.(Blue and White). Specification: Color:Purple/Pink/Sky Blue/White Weight: 30g/1.06oz Package List: 4 x Erasable Water Fabric Marker Pen Note: Please take the fabric test before use, fully meet the requirements and t hen use it in batches . Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.