12 inch stainless steel ruler, protractor head, center head, square heads, for all your leveling needs Dual 180 degree direct reading protractor scale Professional inch/metric tool, adjustable straight edge and depth gauge; Depth, Height and Marking Gauge Straight edge with self-recording tip, horizontal level, plumb level, angle measurer Be made of stainless steel materials high quality and will never rust or corrode Package Dimensions: 35x 16.5 x 2 cm Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be color differences, please refer to the actual item received.