These fabric pens can be used for drawing vibrant designs onto all of our natural and white products and also many other natural and man made fabrics. The design can be fixed by allowing the image to dry for 15 minutes, covering the fabric with a clean cloth and ironing for 1-2 minutes on a cotton setting. The fabric can then be washed as normal. The fabric pens have a brushed tip which allows detailed work to be produced quickly and easily.