Product DescriptionArlington EB1111 Electronic Equipment Enclosure Box for protecting and securing power backups and security devices in a debris-free environment. Made of heavy-duty, UV-rated non-metallic material, dimensions: 11"" x 11"" x 3.5"". Enclosure boxes are lockable with a latch that accomodates a padlock. The enclosure lets you install an optional key-lock - the front door has a knockout that fits cam-lock (model: EBL1-1). handy 1/2-inch and 3/4-inch knockouts on top and bottom of enclosure box. Heavy-Duty, Non-metallic, protect devices, backups, and more.