Features: 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 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 Rule Product : 5 Pieces Product Material: Plastic Product Use: Household Scope of Application: Most of The Scene PackageList:5 x TriangularCurveRule NoteAll data are measured manually, and there are certain errors in the measurement results.