【Air-Erasable Marking Pen】Marks will disappear automatically after a certain period of time. Disappearing time varies with temperature, humidity, cloth, dye, preservation methods, etc. 【Wide Application】Generally used for dressmaking, handicraft, embroidery, artificial flowers, temporary line marking. Suitable for cotton fabrics, leather fabrics, etc. 【Water Soluble】Removing your spots is as easy as applying them. Simply wipe with a wet cloth or sponge or allow the mark. Remove mark as needed and apply with clean water. 【Easy to Use】The interior is solid pen and there are buttons on the outside. And the refill can be adjusted in length and can be adjusted according to the length and comfort of your own use. 【Makes Fabric Marking Easier】Ideal for professional tailoring and home tailoring, its design makes it easy to hold and makes fabric marking easier. It can also be used for glass, ceramics, furniture, etc., marking, marking.Package List: 20*Pen Core 2*Pen