Starrett 635N-150 Spring Tempered Steel Narrow Rule With Millimeter Graduations， 150mm Length， 4.8mm Width， 1.2mm Thickness<img src="http://ecx.images-amazon.com/images/I/217ml3O4RiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21ZK6WNB87L.jpg" noproxy>