Vanco Van-WPBWDI Bulk Cable Wall Plates - Single Decor Allows for Multiple Bulk Cables to be Organized for Professional Installations Designed for Home Theater Surround Sound Designed to Fit Single or Dual Gang J-Box or Low Voltage Mounting Bracket Hole Diameter Approximately: Single: 1-1/4 x 1, Dual: 1-1/4 x 2-1/2