Irwin Strait-Line 586-65104 5 Lb. White Marking Chal, Irwin, Mfr#: 586-65104

High visibility chalk for self chalking line reels . For use on a variety of surfaces including wood, drywall, concrete, stone, and metal . Permanent colors, especially black and red, produce long lasting lines that won’t fade . For non-permanent lines use white or blue color . Fluorescent colors for low visibility applications