Fasmov Drop Box,Inter-Office Mailbox, 4 x 8.2x 11 Inches Made of Plastic and MDF Two keys and screws included Helps keep private office correspondence confidential Mounts securely to any wall or door Ideal for inter office mailbox, donations, suggestions Dimensions: 4 x 8.2x 11 Inches Place on a flat surface or mount with the included hardware The perfect way to lock and secure suggestions, ballots and mail Suggestion box is perfect for suggestions, ballots, donations, business cards, and contest entries Use the mailbox envelopes can be easily put in your mailbox without issue. Boxes can also be used to keep private inter-office correspondence confidential.