Precise universal combination angle made of metal with ruler stop for precise marking and drawing About this item Multifunctional gauge for measuring, scribing and drawing 90 degree and 45 degree stop, more angles available Row of holes for multiple angles and lengths; more multi-angle is really impossible High-quality metal design; scale on both sides Marking gauge for parallel lines The ruler is clear and easy to read. Very convenient for use. 1 stainless steel hidden drawing needle, which acts as another pen for you. Compared to other rulers, this hole ruler has added a hidden anti-drop device! So you don't have to worry about rulers falling off when working. Multiple hanging holes are designed for different storage situations. Great value with really useful additional features such as scriber and ejection stop Technical DetailsPackage Dimensions:31.7 x 15.3 x 2.7 cmStyle:L Shaped RulerMaterial:MetalBatteries Required?:No