When you need markings that actually last, these Dixon industrial crayons are the real deal! The hex-shaped design (4.5 inches long, 1/2 inch diameter) prevents rolling and fits perfectly in lumber crayon holders. These aren't your kids' art supplies - they're serious industrial-grade markers that work on practically everything: wet lumber, dry wood, metal, concrete, you name it! The pink color stands out clearly against most surfaces, and these babies are completely waterproof, fade-proof, and smear-proof. They won't melt in direct sunlight like cheaper crayons, and they last up to 10 times longer than standard wax crayons. Each box contains 12 crayons that are PMA certified non-toxic, so you can use them safely. Whether you're in construction, woodworking, or any trade that requires clear, durable markings, these Dixon crayons have been the professional's choice for generations. Stop dealing with markings that disappear halfway through your project and get the tools that actually work!