30 each blue & white water soluble marking pencil with twisting barrel and retractable lead. Water soluble marking pencils, 30 pcs in Blue, 30 pcs in White, Individually barcoded. 3mm non-toxic pencil lead. Easily removed with damp cloth or cold washing. Easy to use twist barrel can extend pencil lead to desired length. Retract the lead after use without worrying about breakage. Suitable for most colored fabrics. Precise markings for sewing, stitching, craft & patchwork.