What is "sewing chalk"?

Sewing chalk is a marking tool used in sewing to transfer temporary marks onto fabric. It is typically made of a soft and waxy material, such as soapstone or tailor's chalk, that can be easily wiped away or washed off. Sewing chalk is available in various colors, including white, yellow, blue, and pink, to suit different types of fabric. It is commonly used to mark the placement of darts, pleats, pockets, and other design elements on fabric, as well as to indicate the position of buttonholes and zippers. Sewing chalk can also be used to transfer pattern markings onto fabric during the cutting process, making it an essential tool for accurate and precise sewing.