Steel City 59361-1/2 Handy/Utility Outlet Box Extension Ring， Drawn Construction， 4-Inch Length by 2-1/8-Inch Width by 1-7/8-Inch Depth， Galvanized<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Steel</li><li>Galvanized</li><li>13 cubic-Inch capacity</li><li>Drawn construction</li><li>(3) 1/2 inch each side， (1) 1/2 inch each end knockouts</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41hSPHuCgBL.jpg" noproxy>