Bohin mechanical extra fine chalk pencil with 6 refills is a water soluble chalk pencil that can be washed out or erased with any fabric eraser. Extra fine lead for marking on fabrics for patchwork, quilting, clothing and sewing. Works great with a stencil. Long lasting twist eraser (6 mm x 25 mm) that doesn't contain any PVC and is environmentally friendly. Available in white (WH) only. Chalk refills available (CK-260WH). Pre-test on sample fabric before using.