UNIQUE SEWING 2-in-1 Dual-Tip Marking Pen - Wash-Out (Blue) & Air-Erasable (Purple), Fine is designed for marking fabric, sewing guides, quilting lines, labels, craft details, and temporary design placement. Colour/design: Blue, Purple. The format is suited to craft rooms, sewing baskets, classroom bins, project totes, and organized maker spaces. It keeps supplies easy to identify, use, and return to storage between projects.