Displays2go Metal Suggestion Donation Box, Wall or Counter Mount, Locking Black Finish (SBMEBBK) Suggestion and donation box is also great for comments, notes, and collecting rent. Can be securely mounted on a wall. Made of durable metal; choose a black or white finish. Hinged door has a lock to keep contents secure, and comes with 2 keys Security box includes an adhesive pen and a built-in holder for note cards, envelopes, slips, and papers. Displays2go SKU#: SBMEBBK