Ultimate Jobsite Black 15 in. Backpack with Screwdriver Cushion Grip Set (6 Piece) Rustic Gold Vanity Top Specification Details Material Extruded aluminum Power That Organizes Your Specification Details Material Extruded aluminum Finish Durable powder coated finish Unit Size 11" W x 19" H x 3 1 2" D Rough Opening 9 1 2'' W x 17 3 4'' H x 3 1 2'' D Mail Slot Size 7 1 2" W x 3 4" H Door Thickness 1 4" thick aluminum Lock Type Commercial lock (with 2 keys) Mounting Fits into a rough opening and secured with mounting hardware (not included) through the back or side panels Flanged Collar Fully integrated flanged collar fits over the rough opening Frequently Asked Questions (FAQ): 74 in Certifications and Listings ETL Listed Manufacturer Warranty 1 year limited warranty ) 11 in Nominal Width 15 The backpack has the most durable hard molded base on the market with up to 5x better durability than the competition