This product is made from high quality pressed plaster, lime free and grit free, with brilliant colours and clear delineation Tailor's Chalk Heart-shaped tailor's chalk comes in 4 colors and is easy to mark on any textile. Such as silk, polyester, leather, cotton, etc. Different color options are available to meet the needs of different materials of fabrics. Tailor's chalk can mark clear stitches on fabrics that are easy to see and do not disappear easily. Professional plastic box packaging to better protect the product, this product is not fragile sewing chalk, but there is a chance of breakage during transport, broken products will not affect the use.