The Comment boss was designed with your security at the forefront. The patented anti-pry latch locking System is the same design from our Mail Boss locking security mailboxes. You can feel secure that the Comment boss will safeguard your items until you are ready to retrieve them. With versatility in mind, We made the opening slot 4. 7” x 0. 23” with a 1” diameter opening in the center in order to accept a variety of items to include car keys and bundles. Whatever your imagination requires, the Comment boss is ready to meet your needs. The front storage pocket easily and visibly stores Comment/suggestion cards for your customers/employees to provide valuable feedback. A pen divider is built in to the storage pocket to store and display pens For filling out the cards. Constructed from durable steel and powder coat finish, The Comment boss is built to last, and is backed with the Mail Boss lifetime limited.