Klein Tool's Fine Tip Marker 36-Pack Set includes 3 sets of the Cat. No. 8610112 Skribes Fine Tip Black Permanent Markers. The markers are designed for tough jobsite conditions. With durable tips, they create vibrant, long-lasting lines for detailed marking and labeling. The professional-grade ink writes effortlessly on wet, dry, oily, and abrasive surfaces, resisting clogging for smooth marking. 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.