This siding mounting block is made of solid and sturdy plastic with a textured, paintable white surface. The white base can retain its natural off-white appearance or be painted to match the color of vinyl siding, meeting personalized decoration needs. It fits snuggly on 4 to 10 in. high siding with 1/2 in. lap, ensuring a tight seal after installation. The mounting block measures 6.63 in. wide by 6.63 in. high, specially designed for 1/2 in. wide lap siding surfaces ranging from 4 to 10 in. in height. The installation kit with a built-in electrical box simplifies the process: first, drill a hole through the siding lap for wiring; then, cut the opening along the pre-marked patterns on the back, or use the middle drilling support for custom round holes; finally, thread the wire through the connector and secure the block. Suitable for various siding types like T-111, HardiePlank lap siding, and other flat surfaces, this mounting kit can firmly hold outdoor accessories such as light fixtures, cameras, and doorbells.