Irwin 65102 5Lb Red Strait-Line Permanent Chalk Refill (4 Pack)

The 65102 Strait-Line 5lb Red Chalk is what you need to help get things Strait. The Strait-Line red chalk is great for outdoor use, carpentry, bricklaying, masonary, roofing,carpet installation,floor and wall tiling, painting, decorating and many other uses. Red chalk is what you would need for a permanent line that will be able to endure the elements of the environment. Chalk containers are filled by weight not volume.