Feature:1. MULTIFUNCTIONAL DESIGN: Multi functional garment ruler with grading ruler, curve ruler and other functions in one.2. PRACTICAL TOOL: Curve ruler is an ideal tool for designers, tailors, students, beginners, seamstresses, pattern makers.3. MULTIPURPOSE USE: Curve pattern ruler is an essential measuring tool for pattern making, dressmaking, sewing and embroidery. Ideal tool for hand cutting.4. TRANSPARENT DESIGN: Transparent material, built in engraved lines are durable, clear, high accuracy, can meet your needs.5. FUNCTIONAL FEATURES: A collection of 1:3, 1:4, 1:5, and another protractor and many other functions. Ideal tool for manual drawing, cutting, plate making and yardage.Specification:Item Type: Triangular Curve RuleProduct Specification: 5 PiecesProduct Material: PlasticProduct Use: HouseholdScope of Application: Most of The Scene.Package List:5 x Triangular Curve RuleNote:All data are measured manually, and there are certain errors in the measurement results.