When you've got this kit, snapping straight lines on floors, walls, and other large, flat surfaces is a cinch. It's designed for additional durability, increased strength, and sharper detail. StripGuard clutch keeps gears safe from damage Reinforced reel housing protects internal components Planetary gear system helps provide long-lasting durability 6:1 gear retraction ratio quickly returns chalk line to chalk reel housing High-strength braided bold line Availability:Usually Ships in 1-2 Business Days