These Set Squares make it easy to draw accurate angles. With a diagram for reference, the set squares enable you to achieve geometric precision every time. Each set square can be used in conjunction with a straight-edge drawing board. Theyre ideal for professional use, school use and more, and theyre particularly suitable for technical drawing. The set squares feature markings on both sides in millimetres and inches. Youll have a 45 degree angle set square that is 19cm and a 60 degree angle set square that is 24cm.Sizes: 19cm, 24cm Two pack45 and 60 degree anglesMetric and imperial measurements Clear transparentIdeal for technical drawingSet Squares 2 Pack