Earthquake Sound's RK-C8 v2 offers extreme versatility for the installation of all Earthquake 8-inch ceiling speakers. Each rough-in kit is designed to expedite home audio installation during new construction with guaranteed customer satisfaction. Straightforward installation is made possible with the dog-ear mounting wings and mounting ring brackets. The ring bracket provides 360 degrees of positioning for versatility. The perforated anti-rust aluminum wings can be trimmed to a desired length and securely fastened with staples, nails, and screws right into the ceiling joists providing a reliable setup within a matter of minutes.