The special design characterising the rulers of the set ROUNDED RULER aims to make them safer to use, especially for children. Rounded edges and blurred corners, which deliberately do not taper to the tip, ensure that children cannot bump or injure themselves. In order to still be able to produce clear edges or exact angle drawings and thus guarantee the classic function, the length markings were placed inwards. The rulers thus function as frames and the pencil can be placed on the inside of the rulers, which are available in three shapes.