Square 1-gang device ring used with 4 In. square boxes. It is made to mount switches, receptacles, and devices in a variety of settings. The angled slots on the covers compensate for up to 1/2 In. of box misalignment on upright framing members. Additionally, this ring is UL and RoHS compliant for safe use. This product can expose you to chemicals including lead, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov. Este producto puede exponerlo a productos qumicos, incluido el plomo, que el estado de California reconoce como causante de cncer. Para obtener ms informacin, visite www.P65Warnings.ca.gov. -