Helix Oxford Origin math's sets are ideal for use in the office, school, home etc. | Drawing instruments and tools set for the older students and professionals | Traditional world renowned math set | Contains self centering compass, dividers, ruler, protractor, 2 set squares, sharpener and eraser in a sturdy presentation storage tin | Box of 9 items | 1 x 150mm ruler, 1 x Protractor, 1 x 45 deg set square, 1 x 90 deg set square, 1 x 180 deg protractor, 1 x Pencil sharper, 1 x Pencil eraser