Thank you for viewing! (*^-^*) This is a curve ruler, also known as a French curve, that is useful for drafting, sewing, and tracing patterns. You can quickly and beautifully draw curves with it. This is a great value set of 4 measuring tools, including a French curve and a triangle ruler. The deep curve ruler is convenient for working on armholes and sleeve curves. The shallow curve can be used for sleeves and hip lines. This is a set of rulers that are useful in sewing, with various French curves and button shapes cut out. You can turn curves drawn freehand into crisp curves, so you can use them not only for sewing and drafting but also for hobbies such as creating manga and illustrations. This is a great value set of 4! (*^^*) 【Notes】 ◆ There may be minor scratches that occur during the production process, but there is no problem with use. ◆ We carefully inspect our products, but in the unlikely event that a defective product or a damaged product due to shipping problems arrives, please contact us before giving a review. ◆ Please understand that there may be a few centimeters of error due to amateur measurements.