Stanley Chalkline Reel 30M/100" 47-440 offers an extended length of 30 meters (100 inches), allowing you to create long and accurate lines across large surfaces or distances., Built to withstand rugged job site conditions, this chalkline reel is constructed with high-quality materials, ensuring durability and longevity., Chalkline reel is compatible with various types of chalk, allowing you to choose the chalk that best suits your application and surface type.