Swanson Tool S0107 12-Inch Speed Square Layout Tool with Blue Book<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Heavy gauge aluminum alloy with matte finish to prevent glare</li><li>1/4 in. and 1/2 in. spaced notches to facilitate scribing lines</li><li>Black gradations for easy reading</li><li>Patented layout bar</li><li>Great for deck framing and stairway building!</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51avwcoQ0XL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XX1yPoEaL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51fo1iJQzRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41knlPMhqeL.jpg" noproxy>