The Faber Castell Stellar Mathematical Drawing Instrument Box is an important tool for producing and labelling drawings, in particular technical drawings. Includes - 1 compass, 1 divider, 1 set square 45°, 1 set square 60°, 1 scale (15cms), 1 protractor 180°, 1 small wooden pencil, 1 eraser, 1 sharpener, 1 small mechanical pencil and 1 lead tube.