Simple handling and functionality make professional results possible. OTR.1 Draft markers are perfect for outlining, illustration, and coloring of designs, photocopies and laser expressions. Both marker points- BROAD or BULLET, are manufactured in Japan from sturdy and steady polyester. Solid plastic parts (recycleable) with smooth pleasant surface are used for the OTR.1 marker series. Owing to most modern technology MADE IN GERMANY stability of the colors and writing length are guaranteed, by electronic filling.