The Milwaukee 48-22-3980 100ft. Bold Chalk Line Reel is a professional-grade tool designed for accurately marking lines in various projects. Made of durable plastic, this chalk line reel features a bold chalk line for easy visibility and precise marking. With a compact size of 5.3 inches in length, 3.35 inches in width, and 2.3 inches in height, this lightweight tool weighing 0.39lbs is perfect for both hobbyists and professionals in the field of home improvement and workshop projects.