The 22.5 cm triangle ruler combines a ruler, protractor, symmetry ruler, and parallel ruler into a single drawing tool. It is made from highly transparent plexiglass and produced in Austria. The abrasion-resistant deep embossing of the divisions and inscriptions, along with the yellow-highlighted angle scale, ensures a permanently precise and easily readable use. Ink dots guarantee a clean distance from the paper. The triangle complies with the ÖNORM A2134 and ÖNORM A2131 standards and is delivered in a climate-neutral, FSC-certified cardboard packaging. Additionally, it is awarded the Austrian Environmental Label.

The TZ triangle measures 16 cm in length, features a removable handle, a facet on three sides, and ink dots. It has a detachable grip piece, a 10 mm grid, and millimeter divisions arranged perpendicular to the hypotenuse. The marked angles are at 7° and 42° for perspective drawing, at 75° for oblique labeling, and 45° lines for easier shading. It is produced from highly transparent plexiglass in Austria and has a facet on the millimeter scale as well as on all three sides. The abrasion-resistant deep embossing of the divisions, inscriptions, and the yellow-highlighted angle scale complies with the ÖNORM A2134 and A2131 standards. It is delivered in climate-neutral and FSC-certified cardboard packaging and is awarded the Austrian Environmental Label.