Koh-I-Noor Plastic French Curve 50cmA Strong Flexible Rule Which Can Be Bent Into Many Shapes.One Edge Projects and Is Slightly Raised for Use With a Pen to Prevent Smudging.Another Edge Projects Slightly but Is Flush With the Bottom to Enable Accurate Pencil Work.Ideal for Drawing Precise Curves From Point to Point.Ideal for Use in Drafting Engineering Construction Surveying Dress Making Craft and a Multitude of Other Uses.From the Renowned Brand Koh-i-Noor This French Curve Is the Popular Choice for Many Students and Professionals.