The 100' chalk reel kit is convenient and durable. It includes a chalk reel constructed of ABS plastic for water and impact resistance, 4oz of blue chalk and a fine tip marker. This reel kit offers a convenient ChalkView case for the ability to see amount of chalk inside the case, as well as, sliding door for quick and easy refills. With a 3:1 gear ration for 3X faster rewind, high-capacity case for holding up to 4oz. of chalk, and 2X* the tinsel strength for long life this tool allows for efficient marking of surfaces.