Klein Tools' 100-Foot Quick-Fill Chalk Line features jam-resistant gears, ensuring seamless retraction of the 100-Foot braided nylon thread. The 4 times faster 4:1 gear ratio surpasses traditional alternatives. Enjoy dual functionality as a chalk line and plumb bob for precise horizontal and vertical layouts. Transparent, refillable chalk capsules offer easy visibility and optimal refilling with Cat. Nos. CHLK14B, CHLK14R. The high-impact ABS case with soft grips guarantees lasting durability. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.