Fons and Porter Square Up Ruler<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Multifunctional ruler with repositionable plastic trangle (included)</li><li>Aids in squaring up and trimming half-square triangle units</li><li>Remove the repositionable triangle and you have a 6 inch ruler that is square with a diagonal line</li><li>1/4 inch grid marks in black and yellow</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61dZ2BFoJFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61o7bEud-1L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414sU20VDpL.jpg" noproxy>