High-contrast ink resists fading from exposure to UV rain snow and even mud. From the leading name in premium permanent markers a fade-resistant marker that withstands extreme conditions. Bold high-contrast colors resist fading when exposed to harsh UV rays rain snow and mud. Fine durable tip delivers bold color and lines on most surfaces including plastic glass and wood. Ideal for sporting equipment camping gear playground toys water bottles and more. Writes lines 0.9mm to 1.1 mm wide. Sharpie Extreme Permanent Markers 2-Pack Black.