1.Ideal for professional tailor and home tailoring. 2.Made in triangle shape provides the best edges for 3.marking adjustments on garments in progress, tracing patterns, or drafting onto raw fabric. 4.Precise to draw with thin edge and easy to hold. 5.make marking on fabric and draft patterns ever easier. 6Chalk may break in transit.We will send you a new one free of charge If you have any questions about the product feel free to contact us.