Do it White Nylon Chalk Line, 100 ft. is crafted from nylon with a rough braided construction that ensures durability and strength. This chalk line is resistant to rot and abrasion, making it i for tough job site conditions. It is also designed to withstand damage from cement and alkalines, providing long-lasting performance. The line is Do it labeled and shrink film wrapped for protection and easy identification. The tubes measure 1/16 inch in diameter and an approximate breaking strength of 70 pounds. With a length of 100 feet and a clean white color, this chalk line is for precise marking needs in various construction and DIY projects. Model Number: 307055