Camlin Scholar Mathematical Geometry Box is a complete kit for excelling with precision in geometry. It consists of a specially designed self-centering compass, for ease and accuracy while drawing circles & angles. Both divider and compass are made with non-rusting strong material to last long and remain in shape and shine. The plastic used in ruler, protractor and set square are made of high transparency plastic and comes with precise marking for easy reading and accurate drawings. So go ahead and buy this product online now!