Swanson Tool IBL240 Aluminum 24-Inch I-Beam Level (Blue)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Constructed with high-grade aluminum frames and shock resistant end caps</li><li>Acrylic windows protect the vials from breakage.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31gjTOLLtYL.jpg" noproxy>