The Everon® Dye-Resist line of rolling ball point pens provide sharp, fine markings on smooth textured fabrics such as cottons, silks, and natural materials. It is designed for resisting dyeing procedures on synthetics and blends such as 35/65 polyester and cotton or all polyester. The Everon® Dye Resist Pen is perfect for use in textile labs for making test swatches.