Get all the measuring and drafting tools you need in one place. Compactly packed tin box that contains a compass with universal holder for any width pencil and another compass with built in mechanical pencils. Set also contains a sharpener, an eraser and a pencil to be used in the holder, a ruler, two set squares and a protractor. There's even a pack of extra leads for the mechanical pencil giving you everything you need for drawing and measuring angles circles and all your geometry needs. A back-to-school necessity.