Strait-Line Chalk Refill, White, 5-Lb.

Strait-line, 5 lb, white, chalk refill, high visibility chalk for self-chalking, for use on a variety of surfaces including wood, drywall, concrete, stone & metal, permanent colors, especially black & red, produce long lasting lines that won't fade, temporary colors, especially white & blue, provide high visibility & are easy to remove, proprietary formulations for dark, sharp lines & reliable performance, chalk containers are filled by weight not volume.