A precise set square with multiple angles and an inking edge.
Geometry tools are items that assist the user with drawing shapes, within technical drawing or in the office/classroom.
Protractors are transparent plastic instruments that measure angles easily, and are often used in mathematics, and in creating or evaluating drawings.
Set squares (or triangles) are another tool used in mathematics or drawing, which have a right angle, and two angles for quick and easy line drawing, they are often marked out like a ruler.
Set squares and protractors can be purchased separately, or as a pack with other geometric tools. See below for the full range on offer.