Swanson Tool T0101 Speed Square with Blue Layout Book<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>1/4" spaced notches to facilitate scribing lines</li><li>Black gradations for easier reading， matte finish to prevent glare</li><li>Heavy-gauge aluminum alloy</li><li>Packaged individually， blister card， with Swanson Blue Book of instructions</li></ul></div><img src="http://ecx.images-amazon.com/images/I/517RoNhxuYL.jpg" noproxy>