1.[High-quality materials] This vinyl siding mounting kit is made of high-quality plastic material with a black textured surface. The outdoor light mounting plate is larger in size compared to many mounting blocks. The mounting block is well-made, durable, and has a beautiful appearance, which can make the light look more beautiful after installation. 2.[Size details] This vinyl siding mounting block kit is 6.65 inches wide and 10.23 inches high. It can fit tightly with 1/2-inch double-layer and 4-inch high siding, please refer to the size data in the description. If the vinyl siding does not fit, you can put some caulk before painting the block and molding. [Note]: To prevent water from seeping into the distribution box, the top of the electrical box must be sealed (except for the bottom drainage hole). 3.[Easy to install] Quickly and easily install this siding mounting kit. Pass the wires through the center punched hole. Place the wires in the box. There is a drainage hole at the bottom that needs to be kept open to allow water that seeps behind the block to drain out. 4. [Applicable Types] The mounting block allows the installation of lamps on all types of siding, such as T-111, HardiePlank lap vinyl siding. The built-in distribution box makes it more convenient to add lighting to existing siding.