We're using two of these at our church for offerings and suggestions. They're only 3" deep so folks are less likely to walk into them or catch their clothing on the corners. The hinged door folds down all the way allowing us to see everything right down to the bottom of the box. We've put rubberized toolbox liner on the inside bottom, so coins don't clank as kids put their offerings in the box. The slot on top is nearly the full width of the box, which allows for large as well as small envelopes. And its 1/4" slot allows for thicker envelopes. It's perfect for our needs.