A superior quality micro line pen which uses a low odour, non-xylene ink which is permanent on porous and non-porous surfaces including plastic, glass, film, acetate, mylar, perspex, acrylic, metal and of course paper and cardboard. Ideal for graphic work, technical work with rulers and templates as well as many craft projects. Strong, dense ink which dries quickly and waterproof. The robust nylon tip is encased in metal. Pen features a safety ventilated cap and a metal pocket clip. Light and comfortable to use, even over extended times. The ink conforms to ASTM D-4236 and is AP non-toxic.