Strait-Line 65103 5lb Yellow Chalk
The 65103 Strait-Line 5lb Yellow Chalk is what you need to help get things Strait.  The Strait-Line 2.5lb blue chalk is great for outdoor use, carpentry, bricklaying, masonary, roofing,carpet installation,floor and wall tiling, painting, decorating and many other uses. Yellow chalk is great for permanent lines that will endure the elements of the environment  For more than 30 years, Strait-Line products have represented the standard for excellence and performance in marking tools.