This siding box kit includes the box, siding block, and a non-metallic (NM) cable connector. It works on all siding types, and can be installed before or after siding is up (new construction or retrofit). Mounting holes are provided on the inside of the box. Both the box and siding block are UV rated, textured, and paintable to match any siding or trim. The cover measures 6.625" x 10.500", the depth of the box is 1.125", and the box has a volume of 15-1/2" cubic inches.