Irwin Strait-Line Chalk Refills

• 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
• Capacity Wt. : 8 oz.
• Color : Red