quality material This grade plastic curve ruler combines lightweight flexibility with exceptional durability. It has smooth edges that glide across fabric and resist cracks or breaks. The translucent design allows for precise alignment with patterns and fabrics. Versatile sewing companion From initial sketches to final stitches, this ruler supports many tasks. It excels at button placement, neckline shaping, pocket positioning, and creating curves for dresses, shirts, and other garments with professional precision. Designerapproved accuracy Engineered to meet the standards of fashion professionals, it delivers millimeter level measurements for pattern drafting, alterations, and creative modifications. The ergonomic shape fits comfortably in the hand during extended design sessions. Educational essential For fashion students and sewing enthusiasts, it simplifies techniques such as dart adjustments, seam allowances, and hem markings. The clear measurement markings make learning professional techniques accessible to beginners. Practical applications Draft bodices and necklines with precise curves and dart placements Align pockets and evenly space button placements on shirts, jackets, and dresses Mark seam allowances, hems, and other reference measurements with clarity