This product contains 17 commonly used app logos. They are 5 x 5, perfect for the classroom bulletin board! There are many ways in which these can be used. In my own classroom, I cut them out, laminated them, and made a "What's Your Digital Footprint?" board. The board had two large feet, with the app logos trailing behind them, and the board title at the top. There are many other ways these can be used!