Specially designed to collects and holds mail from a mail slot. Fits on all horizontal mail slots. Help mail slot users everywhere with the only space efficient solution to catching their mail. Measuring approximately 9~12'' W x 18.3'' H, our mail slot receptacle conveniently fits ALL standard mail slots at the home or office. Specification: Material: nylon, steel Dimensions: 9~12''x18.3x5.5in(approx). Color: White Quantity: 1 set(other accessories demo in the picture is not included.) ATTENTION: Standing nylon baffle spacing 10 inches cannot be adjusted. Combe Set Instruction as shown in image 2. Or please contact with us if any question. Get it now and you will enjoy the best customer service and free replacement or refund in case of any product problem.