Packed with everything you'll need to tackle those complicated equations and calculations, the Helix Oxford set of mathematical instruments comes presented in a traditionally designed tin box.
The mathematics set includes 15cm ruler, 45° & 60° set square, 180° protractor, 10mm lettering stencil, eraser, sharpeners and timetable/fact sheet.
- 45 degree set square
- 30/60 degree set square
- 10 piece in metal tin