ALUMINUM ALLOY MATERIAL:This multi angle measuring ruler is made of high quality aluminum alloy,which is wear resistant,flexible,not easy to rust,and durable PRECISE ANGLE MEASUREMENT TOOL:The Multi Angle Ruler has a clear scale and is very suitable for precise angle measurement.You can resize to accurately mark tiles.Metal protractors are excellent measuring and integrated hole locating tools TIME SAVER:This Ceramic Tile Opening Locator creates exactly the shape you want and then finds the correct drill hole location.By folding,you can easily measure awkward and difficult to track angles,increasing your productivity PORTABLE:Small size,easy to carry,can be folded into a bag or pocket WIDE APPLICABILITY:Measuring Ruler can easily create portholes,arches,pipe cuts and other projects,ideal for woodworking,brick,tile,wood,glass,stone,laminate,architectural and engineering projects,and can also replace squares and rulers for a wide range of applications in different fields