The Ideal Mark is the best industrial marker in production. It has been made for years and is the strong choice of many industrial companies worldwide. The Ideal Mark industrial marker has a valve action tip that allows you to pump more ink out when the tip dries out. The cost saving there is tremendous. No more throwing good markers out because the tips dried out. The Ideal Mark can be pumped back to life by pressing on the tip. The large volume of ink reserve lets the Ideal marker keep writing and writing. This permanent marker can mark on a variety of surfaces.