Features and Benefits:�Stainless steel construction�Graduations read in 8ths, 16ths, and millimeters�Permanent and accurate photo-engravings/electrolytically etchings�Heavy-duty aluminum straight edge, 1-1/8 in widthThe Empire 18 in. Stiff ruler is designed for long-term use. The ruler is crafted with stainless steel for strength and durability and features etched black graduations, allowing measurements to be read more clearly. It also features inch measurements up to 16ths and metric measurements up to millimeters. It has a hanging hole for easy storage.