Add the finishing touch to your home theater installations. This insert is stamped from 20 gauge steel and painted to match your room decor. Use it in standard electrical boxes or mud rings, and with standard decorative wall plates for easy installation. With heavy-duty, gold-plated binding posts made from precision-machined brass on the front and a screw-terminal block on the back, this insert is simple to install and use. Posts are color-coded red and black for easy identification of the speaker polarity.Please Note: Fits standard electrical boxes and is compatible with Leviton Decora(R) brand wall plates. Decora(R) is a registered trademark of Leviton Manufacturing Company, Inc. This product is not manufactured or endorsed by the Leviton Manufacturing Company, Inc.