Wash‑out dressmaker’s pencil in blue shows clearly on light and mid‑tone fabrics for planning seamlines, pleats and button placements. The smooth core makes crisp, removable guidelines that help improve accuracy in cutting and construction. Keep one near your machine for quick notes and layout adjustments during fittings and sewing sessions. Choose size/type to match fabric and project needs. Test on a scrap and follow package directions for best results.