Sewing Soft Ruler (Plastic Spline) for Drawing and ThreeDimensional Cutting What it is A plastic spline ruler designed for sewing tasks, including marking sleeve holes and drawing cutout arcs. It serves as a soft ruler that supports pattern work and precision drawing. Key features Material: Plastic spline Scale: Clear and easy to read Accuracy: Flexibility: Good Uses: Drawing and threedimensional cutting Line detail: Clear and precise Suitability: Effective for manual insert making Why you need it Provides a clear, durable scale for accurate measurements Flexible enough to trace smooth curves and arcs Helps ensure precise sleeve openings and other curved features Lightweight and easy to handle for pattern drafting and cutting Applications and scenarios Pattern drafting: Draft sleeve openings and curved edges on pattern paper or fabric; create smooth arcs for 3D cutting Garment construction: Mark sleeve holes and other curved features directly on fabric before cutting Manual insert making: Use the precise lines and arcs to guide inserts or decorative elements with accuracy Compatibility and care Compatible with standard sewing patterns and pattern drafting methods Wipe clean after use; store flat to preserve straightness and accuracy Notes The description reflects the original functions: sewing tasks, sleeve holes, arc drawing, drawing and threedimensional cutting, clear and accurate scale, good flexibility, and suitability for manual insert making.