MARKAL DURA-INK 15 96023 is a permanent felt-tip marker from Markal. It features a fast-drying, alcohol-based ink that is waterproof, fade resistant, and weather-resistant, making it ideal for outdoor use on a variety of surfaces, including metal, wood, fabric, plastic, and rubber. The extra-long-lasting fiber tip lasts up to four times longer than standard fiber tips and produces bold, opaque marks when writing. The DURA-INK 15 96023 also features a comfortable and convenient pocket clip that easily attaches to a belt or pocket.