The MILWAUKEE new 150ft Extra Bold Large Capacity Chalk Reel is the most durable and best performing large capacity chalk line reel. The planetary gear system delivers the longest gear life in chalk reels. The chalk line tool features 4X faster gear retraction for quickly marking multiple lines. The chalk string marks with an extra bold line for maximum visibility. The 24 oz capacity allows for more lines to be marked between refills while an extra-large quick turn opening makes those refills easy.