Decorative speaker wire binding post inserts from Impact Acoustics are the finishing touch to your home theater installations. These inserts are stamped from 20-gauge steel and painted to match the room d?cor. Mount in standard electrical boxes or mud rings and finish off with a standard decorative wall plate. With heavy-duty, gold plated binding posts made from precision-machined brass on the front and a screw-terminal block on the back, these wall plates are simple to install and use. Jacks are color coded red and black for easy identification of the speaker polarity.