Large Wall Mounted Weatherproof Steel Secure Drop Box, 11 x 2.4 x 16, WhitePerfect for any indoor or weather protected location, the AdirOffice Wall Mount Drop Box for secure document storage is a low profile but secure way of collecting important items like receipts, letters, and even cash. Durable construction and a neutral colored finish make it ideal for any business where secure storage is important on a temporary basis. The 2. 2" depth wall mounted steel drop box is specifically designed for receipt, temporary secure