OEM Sharpie Extreme Permanent Markers designed for durability and high performance. The fade-resistant ink provides up to 96 hours of exposure to ultraviolet light, ensuring your markings last. Featuring a high-porosity nib design, these markers deliver wider lines and vibrant, high-contrast colors. The versatile formula offers increased adhesion on most surfaces, making them ideal for tough conditions. Perfect for a variety of applications across different surfaces.