TSM Stainless Steel Metal Ruler 12 Inch Bulk Pack of 12 (12", pack 12/stainless) Made of stainless hardened great durable and not deforming Both units English and Metric(inch,cm.,mm.) The resolution of the measurement is 1/8,1/16,1/32,1/64. Perfect for engineering measurement A unit conversion table on the back Save !!! The metal rulers contained bulk pack set 12 pieces