Made of High Quality, Rigid plastic. Strategically placed positioning holes make it easier to use. Smooth edge and sleek curves: You do not need to worry if it may accidentally scratch your hands or objects during use. Transparent design for dark and light colored fabrics. Helps you work more efficiently Sleek curves help you achieve perfect curve cutting. Professional designers always use it to draw or measure sleeve holes, necklines, pocket contours, sleeve caps, anywhere a special contour is needed., Manufacturer: KEARING