The 89B Wall Mount Bracket is designed to wall mount blank 66 wiring blocks allowing cable routing behind the installation. 66 wiring blocks easily snap into the frame. Features Designed for wall mounting. Compatible with blank 66 wiring blocks. Dimensions: 10” H x 3.30” W x 1.90” D. UL listed. Specifications Material: Material: ABS, UL 94V-2 Color: Color XX: WH-White