10PCS Professional Tailors Chalk for Fabric Makers ,Triangle Tailor's Chalk Professional Tailor's Chalk 10pcs 4 Colors Available (Blue, Red, White, Yellow) Package with plastic clear box,easy to storage and use Use as pen to make pattern or designs on fabric, Easy to apply on any fabric,convenient to use, can be removed by dipping in wate. Ours is non-breakable Tailor's chalk, but sometimes still will have some pieces of chalk break in the process of transportation. Though some pieceis broken, but still have no affect to use.