Irwin Strait-Line Light Violet Dust-Off Chalk Line Chalk, 6 oz. is designed for interior use and the convenience of eliminating the need for primer before painting. This chalk line chalk cleans off smoothly and effectively on both smooth and rough surfaces, making it i for a variety of marking tasks. Its light violet color provides clear visibility, and the 6-ounce bottle ensures you have enough chalk for your projects. This product belongs to the purple color family and comes packaged in a convenient bottle for easy application. Model Number: 4935426