The Lockdown Vault Drawer mounts to the underside of your shelf to free up valuable shelf space. The drawer provides 11-1/2"W x 12"D x 2"H of previously unused space. The Vault Drawer is perfect for a variety of loose valuables and documents. The wire form frame slides over any shelf up to 1" thick. The frame's retaining bar buts up against the trays molded lip to keep the user from pulling the drawer out too far and spilling its contents. No tools are needed to install this drawer.14"W x 4"H x 14"D